Individual holder
KOEHLER RICHARD H
US·4 granted patents·1 pending application·69 citations·filing 2011–2016
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0194US9468782B2Face mask seal for use with respirator devices and surgical facemasks, having an anatomically defined geometry conforming to critical fit zones of human facial anatomy, and capable of being actively custom fitted to the user's faceKOEHLER RICHARD H·Filed 2015·Granted Oct 18, 2016·17 cites·5 claims
- 0293US9320923B2Surgical face mask, including reusable masks, with filtered inhalation and exhalation valvesKOEHLER RICHARD H·Filed 2011·Granted Apr 26, 2016·24 cites·25 claims
- 0381US10207129B2Face mask seal for use with respirator devices and surgical facemasks, having an anatomically defined geometry conforming to critical fit zones of human facial anatomy, and capable of being actively custom fitted to the user's faceKOEHLER RICHARD H·Filed 2014·Granted Feb 19, 2019·7 cites·20 claims
- 0474USD717939SFace mask sealKOEHLER RICHARD H·Filed 2013·Granted Nov 18, 2014·21 cites·1 claims
- 0551US2016367842A1Surgical face mask, including reusable masks, with filtered inhalation and exhalation valvesKOEHLER RICHARD H·Filed 2016·Application pending·0 cites
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