Assignee: Thermedics Inc.

Location: Woburn, MA
No. of patents: 37

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Number	Title	Issue Date
5569683	Gel compositions A gel includes a multi-component scented mixture in which the components act in concert to create a perceived scent, disposed in a polymer matrix comprising the polymerization product of one or more ethylenically unsaturated monomers. The monomers are sel...	10/29/1996
5551278	Vapor collector/desorber with non-conductive tube bundle A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	09/03/1996
5476794	Detection method for checking surfaces for nitrogen-containing explosives or drugs Disclosed is a method of rapidly checking surfaces for the presence of traces of specific compounds such as certain explosives and drugs. A hand-covering such as a cotton glove is used to wipe surfaces to pick up particles of the specific compound which m...	12/19/1995
5455516	Meter and method for in situ measurement of the electromagnetic properties of various process materials using cutoff frequency characterization and analysis The present invention provides an apparatus and method for the measurement of, for example, the moisture in a material or, more generally, for the measurement of any material parameter which may be inferred by measuring the electromagnetic properties of t...	10/03/1995
5391420	Fragrance-laden pouch samplers and process for their manufacture Label-like, hermetically-sealed perfume pouch samplers with artwork on their top surface and a pressure sensitive adhesive bottom surface. The adhesive bottom surface may be employed to attach the pouch labels to pages of a magazine or other mailer, provi...	02/21/1995
5310681	Selective detection with high speed gas chromatography A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	05/10/1994
5300758	Vapor detection with high speed gas chromatography Disclosed are a method and apparatus for high speed, selective detection of vapors of specific compounds, particularly nitrogen-containing compounds, utilizing a bypass branch and high speed gas chromatography for improved selectivity and sensitivity of d...	04/05/1994
5268302	Selective, high speed detection of vapors with analysis of multiple GC-separated portions A method and apparatus for selective, high speed detection of vapors of specific gas-chromatographically-separable compounds. In the disclosed method separate analyses are performed on two portions of a gas sample formed by flash-heating trapped vapors to...	12/07/1993
5171216	Multi-lumen catheter coupling A multi-lumen catheter for independent delivery and withdrawal of fluids having an improved leading end to minimize stasis and an improved coupling for connection to externally located infusion and withdrawal tubes. The improved leading end has an ellipso...	12/15/1992
5123274	Hand-held sample gun for vapor collection A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	06/23/1992
5108705	Vapor detection with high speed gas chromatography Disclosed are a method and apparatus for high speed, selective detection of vapors of specific compounds, particularly nitrogen-containing compounds, utilizing, a bypass branch and high speed gas chromatography for improved selectively and sensitivity of ...	04/28/1992
5099743	Selective detection with high speed gas chromatography A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/31/1992
5098451	Vapor concentrator A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/24/1992
5092157	Vapor collector/desorber with metallic ribbon A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/03/1992
5092217	Method of calibrating a vapor detector A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/03/1992
5092218	Selective detection of explosives vapors A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/03/1992
5092219	Selective decomposition of nitrite esters and nitramines A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/03/1992
5092220	Nitric oxide detection with hydrogen and ozone A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/03/1992
5092155	High speed detection of vapors of specific compounds A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g...	03/03/1992
5092156	Vapor collector/desorber with tube bundle and metal foil (C) A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held samp...	03/03/1992
5084024	Catheter and method for relieving catheter stress An improved catheter and catheter system for long term implantation in a patient through a percutaneous access device are provided. The improved catheter has a loop in an external lead portion of the catheter which reduces bending, kinking, and cracking o...	01/28/1992
4909090	Vapor sampling probe Disclosed is a portable, hand-held vapor sampling probe for collecting vapors of compounds such as cocaine, heroin, and explosives prior to their desorption and analysis in a vapor detector. Rechargable batteries power a lamp in the front face of the prob...	03/20/1990
4909089	Walk-in inspection apparatus for producing air samples Disclosed is a walk-in inspection apparatus for active production of air samples containing vapors of explosives, drugs, or other substances carried by a person. The apparatus includes a U-shaped booth with an open end through which a person walks past wa...	03/20/1990
4896547	Air-sampling apparatus with easy walk-in access Disclosed is a walk-in inspection apparatus for active production of air samples containing vapors of explosives, drugs, or other substances carried by a person. The apparatus includes a U-shaped booth with an open end through which a person walks past wa...	01/30/1990
4897081	Percutaneous access device Disclosed is a percutaneous access device (PAD) for long-term skin penetration and use as an access port in the body of a patient. The buttonlike device includes a flat skirt for subdermal anchoring of the PAD and a neck through which a tube may extend fo...	01/30/1990
4886502	Peritoneal access catheter Disclosed is an improved peritoneal access system for providing repeated, long term access through the peritoneum, as for patients undergoing peritoneal dialysis. The system includes a catheter tube extending through an implantable percutaneous access dev...	12/12/1989
4880690	Perfume patch A perfume patch comprising a fragrance-emitting member having a fragrance dispersed within an ultra-thin polyurethane membrane. A layer of pressure sensitive adhesive is applied to adhere the member to a surface. The polyurethane is formed from a diisocya...	11/14/1989
4843016	Detection system and method A detection system for detecting the presence of predetermined compounds in a sample. The system comprises a sample injection means, a chromatographic column, a conversion means and one or more specific gas detectors. The conversion means transforms the c...	06/27/1989
4778764	Detection system and method A detection system for detecting the presence of predetermined compounds in a sample. The system comprises a sample injection means, a chromatographic column, a conversion means and one or more specific gas detectors. The conversion means transforms the c...	10/18/1988
4775633	Detection of hydrazine compounds in gaseous samples by their conversion to nitric oxide-yielding derivatives Disclosed is a method and apparatus for detecting hydrazine, monomethylhydrazine (MMH), and unsymmetrical dimethylhydrazine (UDMH) in a gaseous sample. The hydrazine compound detector includes a sample converter wherein vapors of an aldehyde such as aceta...	10/04/1988
4751133	Medical patches and processes for producing same A layer or member particularly useful as part of a medical patch such as an anisotropic wound dressing, a transdermal skin patch or an incise medical drape and the processes for forming such a member. The member is comprised of a crosslinked thermoset ali...	06/14/1988
4727868	Anisotropic wound dressing An anisotropic wound dressing comprised of a knitted reinforcing fabric which is sandwiched between a crosslinked aliphatic polyurethane. The wound dressing is fabricated by dipping the fabric into a polyurethane-forming coating solution to form a thin fi...	03/01/1988
4668222	Percutaneous access device with removable tube Disclosed is a percutaneous access device (PAD) with a connector lock which facilitates replacement and removal of tubes transmitting materials to or from the body of a patient without the need for surgery and with minimal interference with an implanted P...	05/26/1987
4638043	Drug release system A drug releasing system in the form of a medical patch comprised of a drug dispensing polyurethane member as a matrix for a therapeutically effective amount of drug dispersed therein. The polyurethane of the drug dispensing or releasing member is a polyur...	01/20/1987
4614787	Drug dispensing wound dressing The disclosed wound dressings have a drug dispersed throughout a polyurethane matrix that is the reaction product of: (A) An isocyante terminated prepolymer formed by reaction of isophorone diisocyanate and a macroglycol and (B) a monomer containing hydro...	09/30/1986
4523005	Extrudable polyurethane for prosthetic devices prepared from a diisocyanate, a polytetramethylene ether polyol, and 1,4-butane diol Reaction product of an aliphatic organic diisocyanate, a high molecular weight polyether polyol (poly tetra methylene ether glycol) and 1,4 butane diol. The resulting polymers have thromboresistant properties, a long flexural life and are extrudable. The ...	06/11/1985
4483759	Actinic radiation cured polyurethane acrylic copolymer The actinic radiation cured composition of this invention comprises a polyurethane acrylic copolymer containing a light scattering or fluorescing material. The polyurethane acrylic copolymer is fully cured and is flexible and elastomeric....	11/20/1984

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Assignee: Thermedics Inc.