Inventor · disambiguated record
Douglas J. Hamar
Also filed as: HAMAR DOUGLAS J
10 granted patents·606 citations·filing 1988–2011
92Inventor score
Top patents by PatentIndex Score
10 records- 0197US6173548B1Portable multi-section activity floor and method of manufacture and installationFiled 1998·Granted Jan 16, 2001·315 cites·27 claims
- 0291US5987839AMulti-panel activity floor with fixed hinge connectionsFiled 1998·Granted Nov 23, 1999·144 cites·13 claims
- 0382US7419078B2Nailing deviceHAMAR DOUGLAS J·Filed 2006·Granted Sep 2, 2008·11 cites·42 claims
- 0472US7918579B2Lighted flooringHAMAR DOUGLAS J·Filed 2007·Granted Apr 5, 2011·9 cites·18 claims
- 0572US6931808B2Floor systemFiled 2002·Granted Aug 23, 2005·15 cites·10 claims
- 0672US6044606AFloor systemHORNER FLOORING INC·Filed 1997·Granted Apr 4, 2000·38 cites·15 claims
- 0770US5121579APortable sectional flooring system with post supportPORTAGE HOLDING INC·Filed 1989·Granted Jun 16, 1992·39 cites·41 claims
- 0860US8220949B2Lighted flooringHAMAR DOUGLAS J·Filed 2011·Granted Jul 17, 2012·3 cites·4 claims
- 0955US6397543B1Floor systemFiled 1999·Granted Jun 4, 2002·19 cites·18 claims
- 1037US5020286APortable sectional flooring system with post supportPORTAGE HOLDING INC·Filed 1988·Granted Jun 4, 1991·13 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →