HH

Howard S. Hammel

EA E.I. Du Pont De Nemours And: 12 patents #640 of 8,010Top 8%
📍 Bear, DE: #26 of 286 inventorsTop 10%
🗺 Delaware: #758 of 7,163 inventorsTop 15%
Overall (All Time): #421,672 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
8758642 Compositions and methods for reducing fire hazard of flammable refrigerants Thomas J. Leck 2014-06-24
8535557 Compositions and methods for reducing fire hazard of flammable refrigerants Thomas J. Leck, Nancy Tucker 2013-09-17
8293131 Compositions and methods for reducing fire hazard of flammable refrigerants Thomas J. Leck 2012-10-23
8021569 Compositions and methods for reducing fire hazard of flammable refrigerants Thomas J. Leck 2011-09-20
7867410 Compositions and methods for reducing fire hazard of flammable refrigerants Thomas J. Leck 2011-01-11
7560044 Compositions and methods for reducing fire hazard of flammable refrigerants Thomas J. Leck 2009-07-14
6121337 Compositions containing 1,1,2,2-tetrafluoroethane (HFC-134) for closed-cell polymer foam production Joseph Anthony Creazzo 2000-09-19
5912279 Polymer foams containing blocking agents Robert O. York 1999-06-15
5532284 Polymer foams containing gas barrier resins Philip L. Bartlett, Joseph Anthony Creazzo 1996-07-02
5516811 Polymer foams containing blocking agents Philip L. Bartlett, Joseph Anthony Creazzo 1996-05-14
5439947 Polymer foams containing blocking agents Philip L. Bartlett, Joseph Anthony Creazzo 1995-08-08
5134171 Degradable foam materials Robert O. York 1992-07-28