Semen; John

Patent Applications and Registrations

Patent applications and USPTO patent grants for Semen; John.The latest application filed is for "granular polymer additives and their preparation".

Company Profile

0.11.5

Semen; John - Baton Rouge LA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Granular Polymer Additives and Their Preparation App 20090054698 - Semen; John	2009-02-26
Granular polymer additives and their preparation Grant 7,425,290 - Semen September 16, 2	2008-09-16
Sterically hindered phenol antioxidant granules having balanced hardness App 20050006627 - Semen, John	2005-01-13
Granular polymer additives and their preparation App 20050009725 - Semen, John	2005-01-13
Granular polymer additives and their preparation Grant 6,821,456 - Semen November 23, 2	2004-11-23
Sterically hindered phenol antioxidant granules having balanced hardness Grant 6,800,228 - Semen October 5, 2	2004-10-05
Granular polymer additives and their preparation App 20030193041 - Semen, John	2003-10-16
Additive system for polymers in pellet form which provides proportioned stabilization and internal mold release characteristics Grant 6,596,198 - Semen July 22, 2	2003-07-22
Granular polymer additives and their preparation Grant 6,515,052 - Semen February 4, 2	2003-02-04
Granular polymer additives and their preparation App 20020117651 - Semen, John	2002-08-29
Low dust balanced hardness antioxidant agglomerates and process for the production of same Grant 6,126,863 - Semen October 3, 2	2000-10-03
Preceramic compositions and ceramic products Grant 5,006,492 - Semen , et al. * April 9, 1	1991-04-09
Preceramic compositions and ceramic products Grant 4,942,145 - Moehle , et al. July 17, 1	1990-07-17
Preceramic compositions and ceramic products Grant 4,891,340 - Semen , et al. January 2, 1	1990-01-02
Process for improving strength of SiC ceramics Grant 4,845,058 - Rogers , et al. July 4, 1	1989-07-04
Preceramic compositions and ceramic products Grant 4,835,207 - Semen , et al. May 30, 1	1989-05-30

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