GPAC, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5259854 Disposable HEPA filtration deviceDec 23, 92Nov 09, 93[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5360372 Control system for doors of a negative air pressure enclosureExpiredMar 30, 92Nov 01, 94[F24F]
5099751 Control system for doors of a negative air pressure enclosureExpiredFeb 19, 91Mar 31, 92[F24F]
5054252 System for sealing asbestos contaminated material in building crawl spaceExpiredApr 06, 90Oct 08, 91[E04B, E02D]
4993313 Control system for doors of a negative air pressure enclosureExpiredMay 07, 90Feb 19, 91[F24F]
4922806 Doors for negative air pressure enclosureExpiredMay 02, 89May 08, 90[E06B]
4888846 Asbestos scraperExpiredJan 05, 88Dec 26, 89[A47L]
4884374 Asbestos removal gloveExpiredOct 01, 87Dec 05, 89[B24D]
4818970 Fire condition detection and control system for air moving and filtering unitsExpiredAug 13, 87Apr 04, 89[G08B, A62C]
4786295 Filtration device for airborne contaminantsExpiredOct 01, 87Nov 22, 88[B01D]
4726825 Disposable HEPA filtration deviceExpiredSep 22, 86Feb 23, 88[B01D]
4705429 Method of disposing of asbestos waste materialExpiredApr 10, 86Nov 10, 87[B09B]
4613348 Disposable HEPA filtration deviceExpiredFeb 22, 85Sep 23, 86[B01D]
4604111 Particulate contamination control method and filtration deviceExpiredMay 20, 85Aug 05, 86[B01D]

Top Inventors for This Owner

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