DL

David F. Lawson

Bridgestone: 82 patents #6 of 2,860Top 1%
BF Bridgestone Firestone: 13 patents #8 of 276Top 3%
TR The Firestone Tire & Rubber: 4 patents #45 of 233Top 20%
BR Bridgestone/Firestone Research: 1 patents #27 of 54Top 50%
📍 Uniontown, OH: #3 of 373 inventorsTop 1%
🗺 Ohio: #185 of 73,341 inventorsTop 1%
Overall (All Time): #14,570 of 4,157,543Top 1%
100
Patents All Time

Issued Patents All Time

Showing 51–75 of 100 patents

Patent #TitleCo-InventorsDate
5852189 Tertiaryaminoalkyllithium initiators and the preparation thereof William L. Hergenrother, Michael Lester Kerns 1998-12-22
5792820 Alkyllithium compounds containing cyclic amines and their use in polymerization Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr., John R. Schreffler 1998-08-11
5785778 Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr., John R. Schreffler 1998-07-28
5786441 Polymers, elastomeric compounds and products thereof, derived from novel amine compounds containing side-chain organolithium moieties William L. Hergenrother, Michael Lester Kerns 1998-07-28
5736617 Polymers, elastomeric compounds, and products thereof, terminated with novel amine compounds containing side-chain organohalide reactive moieties Michael Lester Kerns, William L. Hergenrother 1998-04-07
5723533 Soluble anionic polymerization initiators and products therefrom James E. Hall, Yoichi Ozawa 1998-03-03
5674798 Hydrocarbon soluble anionic polymerization initiators Takashi Kitamura, Koichi Morita, Yoichi Ozawa 1997-10-07
5643848 Soluble anionic polymerization initiators and products therefrom James E. Hall, Yoichi Ozawa 1997-07-01
5616704 Solubilized anionic polymerization initiators Mark L. Stayer, Jr., David Saffles, H. James Harwood 1997-04-01
5610228 Anionic polymerization initiators containing adducts of cyclic secondary amines and conjugated dienes, and products therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr. 1997-03-11
5610237 Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr., John R. Schreffler 1997-03-11
5578542 Soluble anionic polymerization initiators and method of preparing same James E. Hall, Yoichi Ozawa 1996-11-26
5574109 Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr., John R. Schreffler 1996-11-12
5567815 Teritary amine containing antonic initiators used in preparing polymers and process for the preparation thereof James E. Hall, Thomas A. Antkowiak 1996-10-22
5552499 Process of preparing reduced hysteresis products using anionic polymerization initiators Takashi Kitamura, Koichi Morita, Yoichi Ozawa 1996-09-03
5552473 Functionalized polymer and rubber compositions produced from solubilized anionic polymerization initiators Mark L. Stayer, Jr., David Saffles 1996-09-03
5536801 Allyl-and xylyl-amine containing elastomers and products having reduced hysteresis Thomas A. Antkowiak, James E. Hall, John R. Schreffler, Mark L. Stayer, Jr. 1996-07-16
5523371 Functionalized polymer of improved hysteresis properties prepared using amino-substituted aryllithium polymerization initiators Thomas A. Antkowiak, Mark L. Stayer, Jr., John R. Schreffler, Hideki Komatsu 1996-06-04
5521309 Tertiary-amino allyl-or xylyl-lithium initiators and method of preparing same Thomas A. Antkowiak, James E. Hall, John R. Schreffler, Mark L. Stayer, Jr. 1996-05-28
5519086 Low-hysteresis elastomer compositions using amino-substituted aryllithium polymerization initiators Thomas A. Antkowiak, Mark L. Stayer, Jr., John R. Schreffler, Hideki Komatsu 1996-05-21
5502131 Method of preparing polymer using allyl-and xylyl-amine containing initiators Thomas A. Antkowiak, James E. Hall, John R. Schreffler, Mark L. Stayer, Jr. 1996-03-26
5502130 Anionic polymerization initiators containing adducts of cyclic secondary amines and conjugated dienes, and products therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr. 1996-03-26
5500447 Anionic polymerization initiators containing adducts of cyclic secondary amines and conjugated dienes, and products therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr. 1996-03-19
5496940 Alkyllithium compounds containing cyclic amines and their use in polymerization Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr., John R. Schreffler 1996-03-05
5491230 Anionic polymerization initiators containing adducts of cyclic secondary amines and conjugated dienes, and products therefrom Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr. 1996-02-13