Assignee
SIMPSON ELWOOD J B
10 granted patents·326 citations·filing 1979–2014
Top patents by PatentIndex Score
10 records- 0196US9572390B1Football helmet having improved impact absorptionSIMPSON ELWOOD J B·Filed 2012·Granted Feb 21, 2017·69 cites·4 claims
- 0293US4302049AHarness release assemblySIMPSON ELWOOD J B·Filed 1979·Granted Nov 24, 1981·70 cites·33 claims
- 0387USD697270SFootball helmet shellSIMPSON ELWOOD J B·Filed 2013·Granted Jan 7, 2014·39 cites·1 claims
- 0482USD406402SSmoothed forehead-imperforate pentagonal nose and chin racing helmet with ventilation openings and windowSIMPSON ELWOOD J B·Filed 1997·Granted Mar 2, 1999·27 cites·1 claims
- 0579USD696463SFootball helmet shellSIMPSON ELWOOD J B·Filed 2013·Granted Dec 24, 2013·25 cites·1 claims
- 0678USD406404SSmoothed forehead-pentagonal nose and chin racing helmet with ventilation openings and windowSIMPSON ELWOOD J B·Filed 1997·Granted Mar 2, 1999·23 cites·1 claims
- 0775US9603408B2Football helmet having improved impact absorptionSIMPSON ELWOOD J B·Filed 2014·Granted Mar 28, 2017·8 cites·10 claims
- 0864USD406403SSmoothed forehead-rounded nose and chin racing helmet with ventilation openings and windowSIMPSON ELWOOD J B·Filed 1997·Granted Mar 2, 1999·13 cites·1 claims
- 0961US5165116AAnti buffeting safety-racing helmetSIMPSON ELWOOD J B·Filed 1991·Granted Nov 24, 1992·50 cites·14 claims
- 1033USD406401SRidged forehead-rounded nose and chin racing helmet with ventilation openings and windowSIMPSON ELWOOD J B·Filed 1997·Granted Mar 2, 1999·2 cites·1 claims
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