Individual holder
CHAPMAN RICK L
US·4 granted patents·1 pending application·70 citations·filing 1997–2014
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0190US9618220B2Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agentsCHAPMAN RICK L·Filed 2014·Granted Apr 11, 2017·6 cites·6 claims
- 0289US9074301B2Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agentsCHAPMAN RICK L·Filed 2011·Granted Jul 7, 2015·8 cites·2 claims
- 0383US6056809AHigh efficiency permanent air filter and method of manufactureCHAPMAN RICK L·Filed 1997·Granted May 2, 2000·56 cites·21 claims
- 0470US9909767B2Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agentsCHAPMAN RICK L·Filed 2014·Granted Mar 6, 2018·0 cites·12 claims
- 0544US2013025456A1Air cleaning filter mediaCHAPMAN RICK L·Filed 2012·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →