Zhang; Zhengfeng

Patent Applications and Registrations

Patent applications and USPTO patent grants for Zhang; Zhengfeng.The latest application filed is for "process for preparation of highly pure, non-yellowing methacrylic acid".

Company Profile

0.7.10

Zhang; Zhengfeng - Quzhou CN
Zhang; Zhengfeng - Shanghai CN
Zhang; Zhengfeng - Wuxi CN
Zhang; Zhengfeng - Shangai CN
Zhang; Zhengfeng - Trostberg DE
Zhang; Zhengfeng - Tutzing DE

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

Patent Activity

Patent	Date
Tent Grant D964,498 - Zhang , et al. September 20, 2	2022-09-20
Process for preparation of highly pure, non-yellowing methacrylic acid Grant 9,290,431 - Zhang , et al. March 22, 2	2016-03-22
Process For Preparation Of Highly Pure, Non-yellowing Methacrylic Acid App 20150126777 - Zhang; Zhengfeng ; et al.	2015-05-07
Process for preparing a photochromic polymeric composition, thus obtained polymeric composition and use thereof Grant 8,277,700 - Zhang , et al. October 2, 2	2012-10-02
Power-Off-Protection Type of Safety Control Double Valve Applied to Pressing Machines App 20120174804 - Rong; Fang ; et al.	2012-07-12
Process for preparing a photochromic polymeric composition, thus obtained polymeric composition and use thereof App 20120085980 - ZHANG; Zhengfeng ; et al.	2012-04-12
Process For Preparing A Photochromic Polymeric Composition, Thus Obtained Polymeric Composition And Use Thereof App 20110260125 - Zhang; Zhengfeng ; et al.	2011-10-27
Dispersion Comprising Inorganic Particles, Water, And At Least One Polymeric Additive App 20100168282 - Becker; Patrick ; et al.	2010-07-01
Method of impregnating a carrier a matrix with solid and/or liquid compounds using compressed gases, and materials thus impregnated Grant 7,713,581 - Heidlas , et al. May 11, 2	2010-05-11
Method for the physical treatment of starch (derivatives) App 20080230050 - Kersting; Hans-Josef ; et al.	2008-09-25
Method of impregnating a carrier a matrix with solid and/or liquid compounds using compressed gases, and materials thus impregnated App 20070054032 - Heidlas; Jurgen ; et al.	2007-03-08
Method for the physical treatment of starch (derivatives) App 20040210046 - Kersting, Hans-Josef ; et al.	2004-10-21
Method for impregnating a support matrix with solid and/or liquid compounds using compressed gases, and matrials impregnated in this manner App 20040101623 - Hiedlas, Jurgen ; et al.	2004-05-27
Propellant mixtures and aerosols for micronizing medicaments with compressed gas Grant 6,228,346 - Zhang , et al. May 8, 2	2001-05-08
Method for separating alkyl glycosides Grant 5,837,831 - Gruning , et al. November 17, 1	1998-11-17

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