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21. 发明授权

US11920127B2 Forensic recovery of identification from shell casings 有权
公开(公告)号：US11920127B2
公开(公告)日：2024-03-05
申请号：US17112947
申请日：2020-12-04
申请人： Signature Science, LLC
发明人： F. Curtis Hewitt , Tierney Sugrue , Benjamin Ludolph , Kathleen Schulte
IPC分类号： C12N15/10
CPC分类号： C12N15/1013
摘要： Non-destructive methods and devices are disclosed herein for overcoming the limitations associated with analyzing shell casings and other cylindrical items for biomolecular and fingerprint extraction and analysis. In a preferred embodiment of these methodologies and devices, the open end of a spent shell casing (or like object) is plugged with a handle. This approach reduces the risk of sample contamination by gunpowder residue, while also providing a convenient means for handling the shell casing that reduces the risk of contamination or sample loss. Spin baskets (or extraction tubes) are provided which may be customized to different shell casing diameters, thereby substantially reducing the volume of extraction buffer required for sample collection and enable ease of centrifugation. A strong surfactant is preferably utilized during collection, which may reduce the amount of time needed for collection to just minutes. The surfactant is preferably of a type that draws on the extracellular nature of DNA in the sample in such a way as to almost instantaneously pull it into solution upon exposure to the buffer. The full buffer volume is then rapidly collected through the spin basket for DNA purification. Additionally, the use of magnetic beads to rapidly separate DNA from metal ions and other inhibitory agents is a primary advancement of the methods. The systems and methodologies disclosed herein offer a possible paradigm shift for forensic laboratories as they analyze challenging types of casework evidence. In particular, these systems and methodologies may be utilized to improve the preservation, recovery and analysis of DNA, proteins, other forensically-relevant biomolecules, chemical, radiological, nuclear, or explosive residues, and fingerprints collected from shell casings or other like samples.

22. 发明申请

US20220003640A1 SUPPORT BACKING STRIP TECHNOLOGY AND METHOD FOR NON-DESTRUCTIVE IDENTIFICATION OF LATENT PRINT AND DNA DEPOSITED ON ADHESIVE MATERIALS 有权
公开(公告)号：US20220003640A1
公开(公告)日：2022-01-06
申请号：US16919095
申请日：2020-07-01
申请人： Signature Science, LLC
发明人： F. Curt Hewitt , Kathleen Q. Schulte
IPC分类号： G01N1/28 , G01N1/40
摘要： A method is provided for recovering a sample of DNA. The method includes providing a portion of adhesive tape having first and second opposing major surfaces, wherein said first major surface has an adhesive disposed thereon; applying a backing strip to the second major surface of the tape, thereby obtaining a mounted tape, wherein said backing strip has first and second opposing major surfaces, and wherein said first and second major surfaces of said backing strip are embossed; capturing a fingerprint on the first surface of the mounted tape, thereby obtaining a specimen, wherein said specimen contains DNA; winding the specimen into a helical configuration in which opposing surfaces of the adhesive tape are spaced apart from each other by said backing strip, thereby obtaining a wound specimen; placing the wound specimen in a receptacle; and extracting a sample of DNA from the wound specimen with a solvent.

23. 发明申请

US20040050183A1 Air sampling device and method 失效
标题翻译：空气取样装置及方法
公开(公告)号：US20040050183A1
公开(公告)日：2004-03-18
申请号：US10601302
申请日：2003-06-06
申请人： SIGNATURE SCIENCE, LLC
发明人： Brian J. Schimmoller , Matthew F. Bartlett
IPC分类号： G01N001/22
CPC分类号： G01N1/2273 , G01N2001/225 , G01N2001/2285
摘要： A lightweight, economical, mass-producible, reusable airfoil can be deployed in an airspace while in or attached to any moving vehicle for the purpose of collecting air samples. A frame has an airfoil shape that provides pressure differentials that preferentially direct particulates and contaminants of differing size and mass to different areas of an absorbent media attached or integral to the frame. The absorbent media are readily detachable from the frame for sanitary and efficient transfer to facilities where the samples can be analyzed.
摘要翻译：为了收集空气样本，轻型，经济，大规模生产的可重复使用的翼型可以在空域中部署在任何移动的车辆上或附着于空气中。框架具有翼型形状，其提供压力差，优先将具有不同尺寸和质量的颗粒和污染物引导到附接或与框架一体的吸收介质的不同区域。吸收介质容易地从框架上拆卸，以便卫生和有效地转移到可以分析样品的设施。

24. 发明公开

EP2567212A1 LOGISTICALLY ENABLED SAMPLING SYSTEM 审中-公开
标题翻译：后勤激活采样系统
公开(公告)号：EP2567212A1
公开(公告)日：2013-03-13
申请号：EP11778147.6
申请日：2011-05-03
申请人： Signature Science, LLC
发明人： BARTLETT, Matthew , SCHIMMOLLER, Brian
IPC分类号： G01N1/22
CPC分类号： G01N1/2214 , G01N2001/2297
摘要： In accordance with one embodiment of the present invention, a data acquisition and control system includes a sample manifold for collecting air samples. The manifold may include twenty-eight discrete sorbent tubes. Each sorbent tube may be sealed within the manifold and the manifold may be removed from the system for sorbent tube analysis. A second manifold may be connected to the system for continued air sampling collection. The system may autonomously collect multiple samples at scheduled or triggered events. The system may also communicate with other systems to form a multi-system monitoring network. The system may also interface and operate with a multitude of sensors and monitors of different types.

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