DR

David M. Roggeman

Bridgestone: 27 patents #46 of 2,860Top 2%
BO Bridgestone Americas Tire Operations: 2 patents #144 of 375Top 40%
TR The Firestone Tire & Rubber: 2 patents #74 of 233Top 35%
BF Bridgestone Firestone: 1 patents #131 of 276Top 50%
Overall (All Time): #116,607 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 25 most recent of 31 patents

Patent #TitleCo-InventorsDate
12410274 Anionic dispersion polymerization process to make random copolymer rubber James J. Kuhel, III, Terrence E. Hogan 2025-09-09
12091474 Method for producing polydienes with reduced cold flow James J. Kuhel, III 2024-09-17
11512161 Functional initiator for anionic polymerization Yuan-Yong Yan 2022-11-29
11104748 Processes for preparing aminosilane functionalized polymers David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2021-08-31
10815328 Functional initiator for anionic polymerization Yuan-Yong Yan 2020-10-27
10745497 Aminosilane initiators and functionalized polymers prepared therefrom David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2020-08-18
10618994 Functional initiator for anionic polymerization Yuan-Yong Yan 2020-04-14
10351636 Processes for preparing aminosilane functionalized polymers David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2019-07-16
9884923 Aminosilane initiators and functionalized polymers prepared therefrom David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2018-02-06
9868805 Polydienes and diene copolymers having organophosphine functionality Terrence E. Hogan, William L. Hergenrother 2018-01-16
9676874 Processes for preparing aminosilane functionalized polymers David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2017-06-13
9422379 Nickel-based catalyst composition Zengquan Qin, Jason T. Poulton, Shigeaki Matsuo 2016-08-23
9365660 Anionic polymerization initiators and processes Yuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan 2016-06-14
9255158 Aminosilane initiators, functionalized polymers prepared therefrom and related processes David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2016-02-09
9163104 Preparation of functional polymers using phosphide initiators Terrence E. Hogan, William L. Hergenrother 2015-10-20
8916665 Aminosilane initiators and functionalized polymers prepared therefrom David F. Lawson, Terrence E. Hogan, Christine Rademacher, Fuminori Ota 2014-12-23
8372925 Nickel-based catalyst composition Zengquan Qin, Jason T. Poulton, Shigeaki Matsuo 2013-02-12
7442748 Continuous polymerization reactor William M. Cole 2008-10-28
7132503 Removing gelled unsaturated elastomers from polymerization equipment associated with their production James H. Pawlow, Daniel F. Graves, William L. Hergenrother, James Oziomek 2006-11-07
6897270 Continuous process for the production of conjugated diene polymers having narrow molecular weight distribution and products therefrom Yoichi Ozawa, H. Jerrold Miller, Koji Masaki, Steven Luo, Thomas A. Antkowiak 2005-05-24
6723888 Humidification of hydrocarbon mixtures for use in polymer synthesis James Oziomek, Timothy L. Tartamella 2004-04-20
6313232 Continuous addition of tin halides to solution SBR Daniel F. Graves, William J. Kern, Yasuo Horikawa 2001-11-06
5891947 In-situ anionic continuous dispersion polymerization process James E. Hall 1999-04-06
5659056 Stabilization of siloxane terminated polymers William L. Hergenrother, Daniel F. Graves, Mark L. Stayer, Jr. 1997-08-19
5614579 Process for the preparation of tapered copolymers via in situ dispersion James E. Hall 1997-03-25