FC

Frank E. Critchfield

UC Union Carbide: 9 patents #58 of 1,402Top 5%
AT Arco Chemical Technology: 6 patents #54 of 285Top 20%
UT Union Carbide Chemicals & Plastics Technology: 3 patents #352 of 701Top 55%
BA Bayer Antwerpen: 1 patents #14 of 44Top 35%
Overall (All Time): #242,534 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6127443 Energy management polyurethane rigid foams with high recovery Mark J. Perry, James L. Lambach 2000-10-03
5718856 Process for manufacturing foam with improved wet set properties Mark Kinkelaar, Keith D. Cavender, James L. Lambach, Robert D. Brasington 1998-02-17
5668191 One-shot cold molded flexible polyurethane foam from low primary hydroxyl polyols and process for the preparation thereof Mark Kinkelaar, James L. Lambach 1997-09-16
5549841 Process for manufacturing foam with improved wet set properties Mark Kinkelaar, Keith D. Cavender, James L. Lambach, Robert D. Brasington 1996-08-27
5496894 Low viscosity polymer polyols with improved dispersion stability Donald W. Simroth, Stuart L. Watson, Jr. 1996-03-05
5395860 Flexible polyurethane foams using chlorinated alkanes Siusun K. Leung, Paul M. Westfall 1995-03-07
5364906 Low viscosity polymer polyols with improved dispersion stability Donald W. Simroth, Stuart L. Watson, Jr. 1994-11-15
5084486 Reactive feed stream to replace inert blowing agent feed stream in a polyurethane foam process William Patten, Keith D. Cavender 1992-01-28
4902723 Process for producing flexible polyurethane foam using hexahydro-s-triazine catalysts Otis M. Baker, Paul M. Westfall 1990-02-20
4883825 Process for the manufacture of low density, flexible polyurethane foams Paul M. Westfall, William A. Gill 1989-11-28
4814359 Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts Otis M. Baker, Paul M. Westfall 1989-03-21
4797501 Silicone-based stabilizers useful in the preparation of improved polyurethane foams Richard C. Myerly, Michael W. Jorgenson 1989-01-10
RE32733 Polymer/polyol compositions having improved combustion resistance Donald W. Simroth, Edgar G. Shook 1988-08-16
4652589 Polymer/polyols having improved combustion resistance and intrinsic viscosity, methods of making same and polyurethanes prepared therefrom Donald W. Simroth, Richard C. Myerly 1987-03-24
4463107 Polymer/polyol compositions having improved combustion resistance Donald W. Simroth, Edgar G. Shook 1984-07-31
4312973 Polyurethane elastomers prepared from polyol or polymer/polyol-chain extender mixtures Richard M. Gerkin, Leslie E. Hawker 1982-01-26
4283500 Polymer/polyisocyanates George H. Armstrong, Richard M. Gerkin 1981-08-11
4226756 Mixtures of extenders and polyols or polymer/polyols useful in polyurethane production Richard M. Gerkin, Leslie E. Hawker 1980-10-07
4190711 Thermoplastic polyether polyurethane elastomers Richard J. Zdrahala 1980-02-26