专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08986822B2 Oil impervious device with high water flow rate 有权
标题翻译：具有高水流量的防油装置
公开(公告)号：US08986822B2
公开(公告)日：2015-03-24
申请号：US13525408
申请日：2012-06-18
申请人： Rakesh Kumar Gupta , Daniel Parker , Branden Michael Baer , Thomas Russell Downs
发明人： Rakesh Kumar Gupta , Daniel Parker , Branden Michael Baer , Thomas Russell Downs
IPC分类号： B32B5/02
CPC分类号： B32B5/02 , B32B5/022 , B32B5/024 , B32B5/026 , B32B5/26 , B32B2250/20 , B32B2262/0261 , B32B2262/0276 , B32B2262/04 , B32B2307/70 , B32B2307/726 , B32B2571/00 , E03F5/125 , E03F5/16 , Y10T442/3707 , Y10T442/488 , Y10T442/659
摘要： A device or method to prevent penetration of oil and petroleum products while allowing high water flow rate is provided. Such device or method is beneficial in controlling the contamination of surrounding soil from accidental leak of hydrocarbons such as oil and other petroleum products from equipment or storage vessels containing such materials. The containment systems equipped with these devices will allow the rain water to flow through while providing barrier to oil and petroleum products.
摘要翻译：提供了一种防止油和石油产品渗透同时允许高水流量的装置或方法。这种装置或方法有利于控制周围土壤的污染，以防止从包含这种材料的设备或储存容器等烃类例如油和其他石油产品的意外泄漏。配备这些设备的安全壳系统将允许雨水流过，同时为石油和石油产品提供屏障。

2. 发明授权

US08388877B2 Process of making water-dispersible multicomponent fibers from sulfopolyesters 有权
标题翻译：从磺基多酯制备水分散性多组分纤维的工艺
公开(公告)号：US08388877B2
公开(公告)日：2013-03-05
申请号：US12975463
申请日：2010-12-22
申请人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
发明人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
IPC分类号： D01D5/34 , D01F6/62
CPC分类号： D04B1/16 , D01F8/14 , D02J1/22 , D03D15/00 , D04H1/4291 , D04H1/4334 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H3/10 , Y10T428/249921 , Y10T428/249938 , Y10T428/2913 , Y10T428/2929 , Y10T428/2931 , Y10T442/2525 , Y10T442/2861 , Y10T442/30 , Y10T442/3146 , Y10T442/3154 , Y10T442/3163 , Y10T442/60 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/69
摘要： Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
摘要翻译：公开了衍生自磺基聚酯与水不可分散聚合物的共混物的多组分纤维，其中初纺旦尼尔小于约6，并且其中水分散性磺基聚酯在240℃下测量的熔体粘度小于12,000泊。以1rad / sec的应变速率，其中基于二酸或二醇残基的总摩尔数，磺基聚酯包含少于约25摩尔％的至少一种磺基单体的残基。多组分纤维能够以相对高的纤维速度，特别是至少约2000m / min的速度拉伸，并且可以用于生产微旦尼尔纤维。纤维制品可以由多组分纤维和微旦尼尔纤维生产。还公开了一种多组分纤维，非织造织物和微米网的方法。

3. 发明授权

US08257628B2 Process of making water-dispersible multicomponent fibers from sulfopolyesters 有权
标题翻译：从磺基多酯制备水分散性多组分纤维的工艺
公开(公告)号：US08257628B2
公开(公告)日：2012-09-04
申请号：US12975456
申请日：2010-12-22
申请人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
发明人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
IPC分类号： D01D5/34 , D01D5/36 , D01F1/04 , D01F1/10 , D01F8/14
CPC分类号： D04B1/16 , D01F8/14 , D02J1/22 , D03D15/00 , D04H1/4291 , D04H1/4334 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H3/10 , Y10T428/249921 , Y10T428/249938 , Y10T428/2913 , Y10T428/2929 , Y10T428/2931 , Y10T442/2525 , Y10T442/2861 , Y10T442/30 , Y10T442/3146 , Y10T442/3154 , Y10T442/3163 , Y10T442/60 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/69
摘要： Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
摘要翻译：公开了衍生自磺基聚酯与水不可分散聚合物的共混物的多组分纤维，其中初纺旦尼尔小于约6，并且其中水分散性磺基聚酯在240℃下测量的熔体粘度小于12,000泊。以1rad / sec的应变速率，其中基于二酸或二醇残基的总摩尔数，磺基聚酯包含少于约25摩尔％的至少一种磺基单体的残基。多组分纤维能够以相对高的纤维速度，特别是至少约2000m / min的速度拉伸，并且可以用于生产微旦尼尔纤维。纤维制品可以由多组分纤维和微旦尼尔纤维生产。还公开了一种多组分纤维，非织造织物和微米网的方法。

4. 发明申请

US20110168625A1 NONWOVENS PRODUCED FROM MULTICOMPONENT FIBERS 有权
标题翻译：从多组分纤维生产的非织造布
公开(公告)号：US20110168625A1
公开(公告)日：2011-07-14
申请号：US13053615
申请日：2011-03-22
申请人： Rakesh Kumar Gupta , Daniel William Klosiewicz , Melvin Glenn Mitchell
发明人： Rakesh Kumar Gupta , Daniel William Klosiewicz , Melvin Glenn Mitchell
IPC分类号： B32B5/02 , D02G3/02 , D04H1/00 , D01D10/00 , D02G3/22 , D02G3/36 , B01D39/06 , A61L15/22 , D21H13/24
CPC分类号： D21H13/24 , D01D5/0985 , D01D5/36 , D01F6/84 , D01F8/14 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H1/492 , D04H1/56 , D04H3/16 , D21H13/20 , D21H13/40 , D21H15/10 , Y10T428/2904 , Y10T428/2913 , Y10T428/2915 , Y10T428/2929 , Y10T428/2931 , Y10T428/298 , Y10T442/609 , Y10T442/611 , Y10T442/614 , Y10T442/619 , Y10T442/626 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/696 , Y10T442/697
摘要： A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture. A process for producing a nonwoven article is also provided.
摘要翻译：提供了一种水不分散性聚合物超细纤维，其包含至少一种水不分散性聚合物，其中水不分散性聚合物超细纤维的当量直径小于5微米，长度小于25毫米。还提供了一种生产水不分散性聚合物微纤维的方法，该方法包括：a）将多组分纤维切割成切割的多组分纤维; b）使含纤维原料与水接触以产生纤维混合料浆; 其中所述含纤维原料包括切割的多组分纤维; c）加热纤维混合浆料以产生加热的纤维混合浆料; d）任选地，将纤维混合浆料混合在剪切区中; e）从多组分纤维中除去至少一部分磺基聚酯以产生包含磺基聚酯分散体和水不可分散聚合物微纤维的浆料混合物; 以及f）将水不分散性聚合物微纤维与浆料混合物分离。还提供了一种生产非织造物品的方法。

5. 发明申请

US20110089601A1 WATER-DISPERSIBLE AND MULTICOMPONENT FIBERS FROM SULFOPOLYESTERS 有权
标题翻译：来自硫醇的水分散和多分散纤维
公开(公告)号：US20110089601A1
公开(公告)日：2011-04-21
申请号：US12975463
申请日：2010-12-22
申请人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
发明人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
IPC分类号： D01D5/08
CPC分类号： D04B1/16 , D01F8/14 , D02J1/22 , D03D15/00 , D04H1/4291 , D04H1/4334 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H3/10 , Y10T428/249921 , Y10T428/249938 , Y10T428/2913 , Y10T428/2929 , Y10T428/2931 , Y10T442/2525 , Y10T442/2861 , Y10T442/30 , Y10T442/3146 , Y10T442/3154 , Y10T442/3163 , Y10T442/60 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/69
摘要： Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
摘要翻译：公开了衍生自磺基聚酯与水不可分散聚合物的共混物的多组分纤维，其中初纺旦尼尔小于约6，并且其中水分散性磺基聚酯在240℃下测量的熔体粘度小于12,000泊。以1rad / sec的应变速率，其中基于二酸或二醇残基的总摩尔数，磺基聚酯包含少于约25摩尔％的至少一种磺基单体的残基。多组分纤维能够以相对高的纤维速度，特别是至少约2000m / min的速度拉伸，并且可以用于生产微旦尼尔纤维。纤维制品可以由多组分纤维和微旦尼尔纤维生产。还公开了一种多组分纤维，非织造织物和微米网的方法。

6. 发明申请

US20110089595A1 WATER-DISPERSIBLE AND MULTICOMPONENT FIBERS FROM SULFOPOLYESTERS 有权
公开(公告)号：US20110089595A1
公开(公告)日：2011-04-21
申请号：US12975484
申请日：2010-12-22
申请人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
发明人： Rakesh Kumar Gupta , Scott Ellery George , Daniel William Klosiewicz , Kab Sik Seo , Coralie McKenna Fleenor , Allen Lynn Crain
IPC分类号： D04H1/20 , D01F8/04
CPC分类号： D04B1/16 , D01F8/14 , D02J1/22 , D03D15/00 , D04H1/4291 , D04H1/4334 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H3/10 , Y10T428/249921 , Y10T428/249938 , Y10T428/2913 , Y10T428/2929 , Y10T428/2931 , Y10T442/2525 , Y10T442/2861 , Y10T442/30 , Y10T442/3146 , Y10T442/3154 , Y10T442/3163 , Y10T442/60 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/69
摘要： Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.

7. 发明申请

US20100221693A1 Instant Messaging For A Virtual Learning Community 审中-公开
标题翻译：虚拟学习社区即时通讯
公开(公告)号：US20100221693A1
公开(公告)日：2010-09-02
申请号：US12293823
申请日：2006-03-31
申请人： Rakesh Kumar Gupta
发明人： Rakesh Kumar Gupta
IPC分类号： G09B3/00 , G06F15/16
CPC分类号： G09B5/14
摘要： The present invention provides an Instant Messaging (IM) System (100) for a Virtual Learning Community (VLC). Clients (150) or user of the VLC are differentiated in their roles, and appropriate rules are set for each role by a Role Extension engine (124c). A user (150) is now allowed to appear with separate roles across separate groups. The Role Extension engine (124c) returns a structured contact list (192a) to a user and an Activation engine 124g updates the user presence information in a VLC Messenger Database 112. A roster engine (14, 25,26) then updates the presence of all the clients who has logged-on to a VLC Server (120), which comprises a VLC Database Server (122), a VLC Web Server (124) and a VLC Messenger Server (126). With the Role Extension engine (124c) together with VLC Client Application Tools (151), a lecturer or teaching assistant (TA) is able to monitor a virtual classroom in session and records students' attendance, inputs and participation. A lecturer can review the TA assessments and publish the students' progress report for continuous assessments. Classroom interaction is now enhanced, for example, a lecturer can take control over a student's desktop, mark a point on the student's desktop and broadcast the captured desktop to his group of students.
摘要翻译：本发明提供了一种用于虚拟学习社区（VLC）的即时消息（IM）系统（100）。客户端（150）或VLC的用户在其角色上有区别，并且角色扩展引擎（124c）为每个角色设置适当的规则。现在允许用户（150）在不同的组中以独立的角色出现。角色扩展引擎（124c）向用户返回结构化联系人列表（192a），并且激活引擎124g更新VLC Messenger数据库112中的用户呈现信息。然后，名单引擎（14,25,26）更新已经登录到VLC服务器（120）的所有客户端，其包括VLC数据库服务器（122），VLC Web服务器（124）和VLC Messenger服务器（126）。使用角色扩展引擎（124c）与VLC客户端应用工具（151）一起，讲师或教学助理（TA）能够监视会话中的虚拟教室，并记录学生的出勤，投入和参与。讲师可以对TA评估进行审查，并发布学生的持续评估进度报告。课堂互动现在得到增强，例如讲师可以控制学生的桌面，标记学生桌面上的一点，并将捕获到的桌面广播给他的学生组。

8. 发明授权

US07634302B2 Method for differentiating tissues in magnetic resonance imaging 失效
标题翻译：磁共振成像鉴别组织的方法
公开(公告)号：US07634302B2
公开(公告)日：2009-12-15
申请号：US10888600
申请日：2004-07-09
申请人： Rakesh Kumar Gupta , Anasuya Mohan Rao , Ramesh Venkatesan
发明人： Rakesh Kumar Gupta , Anasuya Mohan Rao , Ramesh Venkatesan
IPC分类号： A61B5/05
CPC分类号： G01R33/56341 , G01R33/4824 , G01R33/5605 , G01R33/5616 , G01R33/5617 , G01R33/56366
摘要： A method of differentiating tissues in Magnetic Resonance Imaging (MRI) comprising applying a Magnetization Transfer (MT) pre-pulse in combination with the Diffusion Weighted Imaging (DWI) pulse sequence to obtain an image of the tissue under evaluation. Analysis maps and/or measurements are generated from the obtained image, from which values representative of the macromolecular content are computed for obtaining tissue differentiation.
摘要翻译：一种在磁共振成像（MRI）中区分组织的方法，包括与扩散加权成像（DWI）脉冲序列组合施加磁化转移（MT）预脉冲以获得正在评估的组织的图像。从所获得的图像生成分析图和/或测量值，从中计算代表大分子含量的值以获得组织分化。

9. 发明申请

US20080311815A1 NONWOVENS PRODUCED FROM MULTICOMPONENT FIBERS 有权
标题翻译：从多组分纤维生产的非织造布
公开(公告)号：US20080311815A1
公开(公告)日：2008-12-18
申请号：US12199304
申请日：2008-08-27
申请人： Rakesh Kumar Gupta , Daniel William Klosiewicz , Melvin Glenn Mitchell
发明人： Rakesh Kumar Gupta , Daniel William Klosiewicz , Melvin Glenn Mitchell
IPC分类号： D04H3/00 , D21H13/20 , D21H13/24 , D21H13/40
CPC分类号： D21H13/24 , D01D5/0985 , D01D5/36 , D01F6/84 , D01F8/14 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H1/492 , D04H1/56 , D04H3/16 , D21H13/20 , D21H13/40 , D21H15/10 , Y10T428/2904 , Y10T428/2913 , Y10T428/2915 , Y10T428/2929 , Y10T428/2931 , Y10T428/298 , Y10T442/609 , Y10T442/611 , Y10T442/614 , Y10T442/619 , Y10T442/626 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/696 , Y10T442/697
摘要： A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture. A process for producing a nonwoven article is also provided.
摘要翻译：提供了一种水不分散性聚合物超细纤维，其包含至少一种水不分散性聚合物，其中水不分散性聚合物超细纤维的当量直径小于5微米，长度小于25毫米。还提供了一种生产水不分散性聚合物微纤维的方法，该方法包括：a）将多组分纤维切割成切割的多组分纤维; b）使含纤维原料与水接触以产生纤维混合料浆; 其中所述含纤维原料包括切割的多组分纤维; c）加热纤维混合浆料以产生加热的纤维混合浆料; d）任选地，将纤维混合浆料混合在剪切区中; e）从多组分纤维中除去至少一部分磺基聚酯以产生包含磺基聚酯分散体和水不可分散聚合物微纤维的浆料混合物; 以及f）将水不分散性聚合物微纤维与浆料混合物分离。还提供了一种生产非织造物品的方法。

10. 发明授权

US5698480A Textile structures containing linear low density polyethylene binder fibers 失效
标题翻译：含有线性低密度聚乙烯粘合纤维的纺织结构
公开(公告)号：US5698480A
公开(公告)日：1997-12-16
申请号：US287973
申请日：1994-08-09
申请人： James Dulaney Geiman , Rakesh Kumar Gupta , Randall Earl Kozulla , Richard Jean Legare , Robert Gray MacLellan
发明人： James Dulaney Geiman , Rakesh Kumar Gupta , Randall Earl Kozulla , Richard Jean Legare , Robert Gray MacLellan
IPC分类号： B32B5/26 , D01F6/30 , D02G3/40 , D03D15/00 , D04H1/54 , D04H13/00 , D02D3/00
CPC分类号： D01F6/30 , B32B5/26 , D02G3/402 , D04H1/4291 , D04H1/485 , D04H1/498 , D04H1/54 , D04H1/559 , Y10T428/2904 , Y10T428/2913 , Y10T428/2967 , Y10T428/2969 , Y10T442/30 , Y10T442/3049 , Y10T442/313 , Y10T442/3138 , Y10T442/322 , Y10T442/3244 , Y10T442/3268 , Y10T442/3285 , Y10T442/3293 , Y10T442/3309 , Y10T442/3317 , Y10T442/348 , Y10T442/3504 , Y10T442/3724 , Y10T442/374 , Y10T442/3748 , Y10T442/667 , Y10T442/668
摘要： A fiber comprising at least about 80% by weight linear low density polyethylene and having a melting point >109.degree. C. is disclosed. Also disclosed are thermally consolidated fiber structures comprising (1) at least about 3% by weight, based on the total weight of the structure, of lower melting binder fibers comprising at least 80% by weight linear low density polyethylene, and (2) not more than 97% by weight, based on the total weight of the structure, of nonmelting fibers, or fibers having a melting point higher than the linear low density polyethylene fibers. The fiber structures can be in the form of multifilament yarns, woven or nonwoven textile fabrics, carpets, or laminates. The linear low density polyethylene binder fibers in the structures preferably have a melting point
摘要翻译：公开了包含至少约80重量％线性低密度聚乙烯并且具有> 109℃熔点的纤维。还公开了热固化的纤维结构，其包括（1）基于结构的总重量的至少约3重量％的包含至少80重量％线性低密度聚乙烯的低熔点粘合剂纤维，和（2）不超过97重量％，基于结构的总重量，非熔化纤维或熔点高于线性低密度聚乙烯纤维的纤维。纤维结构可以是复丝纱线，织造或非织造织物，地毯或层压材料的形式。结构中的线性低密度聚乙烯粘合纤维优选具有<109℃的熔点

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式