Inventor · disambiguated record
William J. Friedman
Also filed as: FRIEDMAN WILLIAM J
10 granted patents·160 citations·filing 1995–1998
90Inventor score
Top patents by PatentIndex Score
10 records- 0177US5931642APlastic combined vacuum and holding tankSEALAND TECHNOLOGY INC·Filed 1997·Granted Aug 3, 1999·27 cites·20 claims
- 0272US5681148AVacuum/holding tankSEALAND TECHNOLOGY INC·Filed 1995·Granted Oct 28, 1997·24 cites·23 claims
- 0360US5621924AVacuum tank construction for a vacuum toilet assemblySEALAND TTECHNOLOGY INC·Filed 1995·Granted Apr 22, 1997·31 cites·21 claims
- 0456US6082979AAir pump for vacuum toilet systemsSEALAND TECHNOLOGY INC·Filed 1997·Granted Jul 4, 2000·26 cites·18 claims
- 0549US6234197B1Holding tank vacuum reliefSEALAND TECHNOLOGY INC·Filed 1996·Granted May 22, 2001·19 cites·17 claims
- 0646US6065493AVacuum relief valve for sewage holding tankSEALAND TECHNOLOGY INC·Filed 1998·Granted May 23, 2000·11 cites·20 claims
- 0745US5860799APulsation damper for marine tank pumpout systemsSEALAND TECHNOLOGY INC·Filed 1997·Granted Jan 19, 1999·11 cites·22 claims
- 0837US5806454ADischarge hose adapter for boat holding tankSEALAND TECHNOLOGY INC·Filed 1996·Granted Sep 15, 1998·5 cites·18 claims
- 0932US6216284B1Low odor permeable hoseSEALAND TECHNOLOGY INC·Filed 1998·Granted Apr 17, 2001·3 cites·20 claims
- 1032US5939160ALow odor permeable hoseSEALAND TECHNOLOGY INC·Filed 1997·Granted Aug 17, 1999·3 cites·19 claims
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