Inventor · disambiguated record
Howard S. Hammel
Also filed as: HAMMEL HOWARD · HAMMEL HOWARD S · HAMMEL HOWARD SIMS
12 granted patents·1 pending application·277 citations·filing 1992–2013
92Inventor score
Top patents by PatentIndex Score
13 records- 0189US5532284APolymer foams containing gas barrier resinsDU PONT·Filed 1995·Granted Jul 2, 1996·65 cites·15 claims
- 0289US5134171ADegradable foam materialsDU PONT·Filed 1992·Granted Jul 28, 1992·96 cites·14 claims
- 0387US8021569B2Compositions and methods for reducing fire hazard of flammable refrigerantsDU PONT·Filed 2010·Granted Sep 20, 2011·3 cites·16 claims
- 0483US8293131B2Compositions and methods for reducing fire hazard of flammable refrigerantsLECK THOMAS J·Filed 2011·Granted Oct 23, 2012·2 cites·11 claims
- 0583US7867410B2Compositions and methods for reducing fire hazard of flammable refrigerantsDU PONT·Filed 2009·Granted Jan 11, 2011·3 cites·19 claims
- 0680US7560044B2Compositions and methods for reducing fire hazard of flammable refrigerantsDU PONT·Filed 2004·Granted Jul 14, 2009·9 cites·25 claims
- 0780US5912279APolymer foams containing blocking agentsDU PONT·Filed 1997·Granted Jun 15, 1999·43 cites·4 claims
- 0877US5439947APolymer foams containing blocking agentsDU PONT·Filed 1992·Granted Aug 8, 1995·32 cites·28 claims
- 0971US8758642B2Compositions and methods for reducing fire hazard of flammable refrigerantsDU PONT·Filed 2013·Granted Jun 24, 2014·0 cites·20 claims
- 1060US6121337ACompositions containing 1,1,2,2-tetrafluoroethane (HFC-134) for closed-cell polymer foam productionDU PONT·Filed 1997·Granted Sep 19, 2000·18 cites·8 claims
- 1155US8535557B2Compositions and methods for reducing fire hazard of flammable refrigerantsLECK THOMAS JOSEPH·Filed 2012·Granted Sep 17, 2013·0 cites·9 claims
- 1243US2008238011A1Mobile article transporterHAMMEL HOWARD·Filed 2007·Application pending·0 cites
- 1339US5516811APolymer foams containing blocking agentsDU PONT·Filed 1995·Granted May 14, 1996·6 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →