Inventor · disambiguated record
Kelvin J. Witcher
Also filed as: WITCHER KELVIN J
10 granted patents·6 pending applications·300 citations·filing 1994–2025
90Inventor score
Files with3M INNOVATIVE PROPERTIES CO83M INNOVATIVE PROPERTIES COMPANY3SOLVENTUM INTELLECTUAL PROPERTIES COMPANY2BOMMARITO G MARCO1FOLTZ WILLIAM E1
Top patents by PatentIndex Score
16 records- 0195US10059977B2Biological sterilization indicator3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted Aug 28, 2018·12 cites·20 claims
- 0295US5508060AMethod of polymer impregnationMINNESOTA MINING & MFG·Filed 1994·Granted Apr 16, 1996·151 cites·2 claims
- 0392US9650661B2Nanostructured spore carrier3M INNOVATIVE PROPERTIES CO·Filed 2014·Granted May 16, 2017·9 cites·18 claims
- 0490US6566090B2Rapid readout sterilization indicator for liquid peracetic acid sterilization procedures3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted May 20, 2003·34 cites·3 claims
- 0589US7045343B2Sterilization indicator test packs3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted May 16, 2006·34 cites·23 claims
- 0678US6352837B1Rapid readout sterilization indicator for liquid peracetic acid sterilization procedures3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Mar 5, 2002·57 cites·48 claims
- 0767US12228555B2Self-contained biological indicatorSOLVENTUM INTELLECTUAL PROPERTIES COMPANY·Filed 2019·Granted Feb 18, 2025·0 cites·7 claims
- 0867US9575022B2Electronic indicator for monitoring efficacy of a cleaning cycle3M INNOVATIVE PROPERTIES CO·Filed 2013·Granted Feb 21, 2017·3 cites·24 claims
- 0966US2025146990A1Self-contained biological indicatorSOLVENTUM INTELLECTUAL PROPERTIES COMPANY·Filed 2025·Application pending·0 cites
- 1064US11951226B2Ethylene oxide sterilization sensor including acid-functional sorbent and method of use3M INNOVATIVE PROPERTIES COMPANY·Filed 2020·Granted Apr 9, 2024·0 cites·12 claims
- 1158US2022387653A1Ethylene Oxide Sterilization Sensor Including Thermal Indicator Component and Acid-Functional Sorbent or Nonwoven Fibrous Substrate, and Method of Use3M INNOVATIVE PROPERTIES COMPANY·Filed 2022·Application pending·0 cites
- 1258US2023047207A1Self-Contained Biological Indicator with Salt Compound3M INNOVATIVE PROPERTIES COMPANY·Filed 2021·Application pending·0 cites
- 1354US11421261B2Methods to detect microorganisms3M INNOVATIVE PROPERTIES CO·Filed 2018·Granted Aug 23, 2022·0 cites·13 claims
- 1449US2011211991A1Process challenge device and methodFOLTZ WILLIAM E·Filed 2009·Application pending·0 cites
- 1548US2020385776A1Compositions and methods to detect microorgnaisms3M INNOVATIVE PROPERTIES CO·Filed 2018·Application pending·0 cites
- 1643US2012204906A1Method of controlling a decontamination processBOMMARITO G MARCO·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →