Inventor · disambiguated record
Karl G. Otzen
Also filed as: OTZEN KARL G
8 granted patents·208 citations·filing 1975–1999
89Inventor score
Top patents by PatentIndex Score
8 records- 0190US4462415AParts cleaner adapted for simplified serviceSAFETY KLEEN CORP·Filed 1982·Granted Jul 31, 1984·54 cites·36 claims
- 0283US3960728ADisposable filter apparatusSAFETY KLEEN CORP·Filed 1975·Granted Jun 1, 1976·43 cites·5 claims
- 0377US4261378AAccessory for parts washerSAFETY KLEEN CORP·Filed 1979·Granted Apr 14, 1981·30 cites·26 claims
- 0475US4944782ABaffle type hood and duct filters for commerical useJOHNSON & SON INC S C·Filed 1989·Granted Jul 31, 1990·43 cites·22 claims
- 0553US6119714AValve cap with pressure indicating labelFiled 1999·Granted Sep 19, 2000·17 cites·17 claims
- 0647US4049551ASafety device for open receptacleSAFETY KLEEN CORP·Filed 1975·Granted Sep 20, 1977·15 cites·3 claims
- 0737US4096873AImmersion cleanerSAFETY KLEEN CORP·Filed 1977·Granted Jun 27, 1978·4 cites·11 claims
- 0831US4160603AImmersion cleanerSAFETY KLEEN CORP·Filed 1978·Granted Jul 10, 1979·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →