Keith E. Stephens — 17 Patents at Kraton Polymers

Keith E. Stephens has been granted 17 US patents while listed as an inventor at Kraton Polymers. The first was granted in 1987 and the most recent in December 2018. Keith E. Stephens ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Keith E. Stephens in Waxahachie, TX, US.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10156233	Dual control valve for reciprocating compressor unloader system	Tingrong Ren, Gary Hyer	2018-12-18
10087920	Compressor bushing	Tingrong Ren, Jonathan Rollier, Mark Long	2018-10-02
9835147	Dual control valve for reciprocating compressor unloader system	Tingrong Ren, Gary Hyer	2017-12-05
9493654	Preparation of industrial asphalt	Nicholas Soto, Denis Muki Tibah	2016-11-15
9457354	System and method for continuous processing of recyclable material	James A. Svec, Denis Muki Tibah	2016-10-04
9187644	Continuous processing of asphalt formulations	James A. Svec, Denis Muki Tibah	2015-11-17
9115296	Bituminous emulsions	Robert Q. Kluttz, Willem C. Vonk, Jan Korenstra	2015-08-25	$4,303,000
9010058	Shingle with transition device for impact resistance	Daniel C. DeJarnette, William B. Corley, Sr., Willie R. Grice, Skyler G. Hare, Mark Glover +3 more	2015-04-21
8901211	Preparation of industrial asphalt	Nicholas Soto, Denis Muki Tibah	2014-12-02
7728074	Process for preparing a bituminous binder composition	Robert Q. Kluttz	2010-06-01	$4,475,000
7622519	Bituminous binder composition and process for preparing the same	Robert Q. Kluttz	2009-11-24
7592381	Process for preparing a bituminous binder composition	Robert Q. Kluttz	2009-09-22
7576148	Blown asphalt compositions	Robert Q. Kluttz, Harriet Kendrick	2009-08-18
7402619	Cross-linking compositions for polymer-modified asphalt compositions	—	2008-07-22
6759454	Polymer modified bitumen compositions	Robert Q. Kluttz, Dale L. Handlin, Jr., Carl L. Willis	2004-07-06
4751147	Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom	Andre J. Uzee	1988-06-14	$7,789,000
4707522	Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom	Andre J. Uzee	1987-11-17	$7,240,000

Keith E. Stephens — 17 Patents

Issued Patents All Time

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