CK

Clifton L. Kehr

W& W. R. Grace &: 5 patents #32 of 433Top 8%
WC W.R. Grace & Co.-Conn.: 5 patents #144 of 1,045Top 15%
HC Hampshire Chemical: 4 patents #7 of 38Top 20%
📍 Silver Spring, MD: #90 of 1,812 inventorsTop 5%
🗺 Maryland: #2,000 of 35,612 inventorsTop 6%
Overall (All Time): #357,929 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
5462536 Protein nonadsorptive membranes for wound dressings James A. Braatz, Timothy G. Grasel, William S. Letter 1995-10-31
5296518 Hydrophilic polyurethaneurea foams containing no toxic leachable additives and method to produce such foams Timothy G. Grasel, Clifford Alvin Ferrin, Jr., James L. Guthrie 1994-03-22
5270044 Degradable articles and methods of using such articles as degradable bait Glenn E. Fulmer, Narender P. Luthra, Darwin Scott Bull, James L. Guthrie 1993-12-14
5266323 Degradable articles and methods of using such articles as degradable bait James L. Guthrie, Narendar P. Luthra, Darwin Scott Bull 1993-11-30
5175229 Biocompatible polyurea-urethane hydrated polymers James A. Braatz 1992-12-29
5169720 Protein non-adsorptive polyurea-urethane polymer coated devices James A. Braatz, Aaron H. Heifetz, Richard A. Wolfe 1992-12-08
5075427 Polymer surface modification using aqueous stable diazo solution Uan G. Kang, Joseph W. Raksis, Clifford Alvin Ferrin, Jr. 1991-12-24
5039458 Method of making a hydrophilic, biocompatible, protein non-adsorptive contact lens James A. Braatz 1991-08-13
4886866 Contact lenses based on biocompatible polyurethane and polyurea-urethane hydrated polymers James A. Braatz 1989-12-12
4510097 Hindered aliphatic monoisocyanates Walter R. Wszolek, Nelson S. Marans 1985-04-09
4439553 High molecular weight aromatic amine scavengers and method of use James L. Guthrie 1984-03-27
4403083 Preparation of solid polyurethane particles Nelson S. Marans 1983-09-06
4211847 Polyurethane foams and foam forming compositions containing amine scavengers Louis L. Wood, James L. Guthrie 1980-07-08
4201846 Dimensionally stable polyurethane foam Louis L. Wood, Nelson S. Marans, Glenn E. Fulmer 1980-05-06