BRITISH TECHNOLOGY GROUP USA INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5324914 Method and apparatus for welding precipitation hardenable materialsSep 25, 92Jun 28, 94[B23K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5492289 Lifting body with reduced-strength trailing vorticesExpiredMay 23, 94Feb 20, 96[B64C]
5391887 Method and apparatus for the management of hazardous waste materialExpiredFeb 10, 93Feb 21, 95[G21F]
5385034 Vapor compression systemsExpiredApr 02, 93Jan 31, 95[F25B]
RE34326 Encapsulation of sperm for artificial inseminationExpiredNov 14, 90Jul 27, 93[A61K, A01N]
4855823 Imaging assembly and mounting for surveillance viewing under remote controlExpiredMay 05, 88Aug 08, 89[H04N]
4840891 Encapsulation of sperm for artificial inseminationExpiredSep 03, 86Jun 20, 89[A01N, C12N]
4803170 Competitive immunoassay method, device and test kitExpiredDec 24, 86Feb 07, 89[G01N]
4746631 Immunoassay method, device, and test kitExpiredMay 09, 85May 24, 88[G01N]
4711994 Security system for correlating passengers and their baggageExpiredJan 17, 86Dec 08, 87[G06F, G06K]

Top Inventors for This Owner

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