Inventor · disambiguated record
David P. Knivsland
Also filed as: KNIVSLAND DAVID P
11 granted patents·1 pending application·448 citations·filing 1995–2023
91Inventor score
Files with3M INNOVATIVE PROPERTIES CO5MINNESOTA MINING & MFG43M INNOVATIVE PROPERTIES COMPANY2FLANNIGAN PAUL J1
Top patents by PatentIndex Score
12 records- 0198USD378610SFull face respiratorMINNESOTA MINING & MFG·Filed 1995·Granted Mar 25, 1997·131 cites·1 claims
- 0296US5924420AFull face respirator mask having integral connectors disposed in lens areaMINNESOTA MINING & MFG·Filed 1996·Granted Jul 20, 1999·249 cites·8 claims
- 0387US12070633B2Unitary respirator with molded thermoset elastomeric elements3M INNOVATIVE PROPERTIES COMPANY·Filed 2023·Granted Aug 27, 2024·0 cites·7 claims
- 0483US10065056B2Unitary respirator with molded thermoset elastomeric elements3M INNOVATIVE PROPERTIES CO·Filed 2014·Granted Sep 4, 2018·3 cites·5 claims
- 0576USD421118SInlet port adaptor on a full-face respirator lens3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Feb 22, 2000·21 cites·1 claims
- 0675US8820326B2Respirator facepiece with thermoset elastomeric face sealFLANNIGAN PAUL J·Filed 2008·Granted Sep 2, 2014·10 cites·15 claims
- 0771USD426298SFull-face respirator lens3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Jun 6, 2000·16 cites·1 claims
- 0863USD388872SFull face respirator lensMINNESOTA MINING & MFG·Filed 1996·Granted Jan 6, 1998·12 cites·1 claims
- 0960US11701528B2Unitary respirator with molded thermoset elastomeric elements3M INNOVATIVE PROPERTIES COMPANY·Filed 2018·Granted Jul 18, 2023·0 cites·6 claims
- 1060US2010218761A1Unitary respirator with molded thermoset elastomeric elements3M INNOVATIVE PROPERTIES CO·Filed 2008·Application pending·0 cites
- 1147USD409744SFull face respirator lensMINNESOTA MINING & MFG·Filed 1997·Granted May 11, 1999·6 cites·1 claims
- 1229USD421301STwo position pressure demand inlet port adaptor3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Feb 29, 2000·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →