Inventor · disambiguated record
Edwin L. Johnson
Also filed as: JOHNSON EDWIN · JOHNSON EDWIN L · JOHNSON EDWIN LEE · PENISTON QUINTIN P
13 granted patents·2 pending applications·334 citations·filing 1974–2024
93Inventor score
Top patents by PatentIndex Score
15 records- 0195US4195175AProcess for the manufacture of chitosanJOHNSON EDWIN L·Filed 1978·Granted Mar 25, 1980·104 cites·3 claims
- 0292US9732876B2Retarder control valve assembly and system for rail carsEDCO USA·Filed 2014·Granted Aug 15, 2017·20 cites·26 claims
- 0390US4199496AProcess for the recovery of chemicals from the shells of crustaceaJOHNSON EDWIN L·Filed 1975·Granted Apr 22, 1980·47 cites·27 claims
- 0488US10502237B2Method and system for attenuating transmission of high amplitude oscillations by a vacuum systemEDCO USA·Filed 2012·Granted Dec 10, 2019·11 cites·13 claims
- 0588US8106030B2Hemostatic materialHARDY CRAIG·Filed 2006·Granted Jan 31, 2012·19 cites·44 claims
- 0686US7981872B2Hemostatic materialMEDTRADE PRODUCTS LTD·Filed 2006·Granted Jul 19, 2011·12 cites·27 claims
- 0777US4018678AMethod of and apparatus for fluid filtration and the like with the aid of chitosanPENISTON QUINTIN P·Filed 1974·Granted Apr 19, 1977·36 cites·12 claims
- 0871US6130321AHigh tap density chitosan, and methods of productionVANSON INC·Filed 1998·Granted Oct 10, 2000·36 cites·34 claims
- 0965US4066735AProcess for demineralization of crustacea shellsPENISTON QUINTIN P·Filed 1976·Granted Jan 3, 1978·11 cites·6 claims
- 1058US4001920AQuick-disconnect buckleJOHNSON EDWIN L·Filed 1975·Granted Jan 11, 1977·17 cites·7 claims
- 1156US2025097633A1Playback Device with Acoustic Volume Coupling VentSONOS INC·Filed 2024·Application pending·0 cites
- 1255US9964230B2Retarder control valve assembly and system for rail carsEDCO USA·Filed 2017·Granted May 8, 2018·0 cites·16 claims
- 1353US4159932AProcess for activating chitin by microwave treatment and improved activated chitin productPENISTON QUINTIN P·Filed 1978·Granted Jul 3, 1979·10 cites·7 claims
- 1446US2005203058A1Compositions of alpha- and beta-chitosan and methods of preparing themFiled 2005·Application pending·0 cites
- 1542US5960821AFlow sensor device and associated vacuum holding systemFiled 1997·Granted Oct 5, 1999·11 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →