Assmann; Andrea

Patent Applications and Registrations

Patent applications and USPTO patent grants for Assmann; Andrea.The latest application filed is for "biodegradable anti-accretion additive for water-based drilling fluids".

Company Profile

1.6.7

Assmann; Andrea - Unterreit DE

*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
Biodegradable anti-accretion additive for water-based drilling fluids Grant 10,308,858 - Assmann , et al.	2019-06-04
Biodegradable Anti-accretion Additive For Water-based Drilling Fluids App 20150159073 - Assmann; Andrea ; et al.	2015-06-11
Use of hydrophobically associated copolymer as an additive in specific oilfield applications Grant 9,051,503 - Reichenbach-Klinke , et al. June 9, 2	2015-06-09
Graft polymer mixture Grant 8,802,748 - Assmann , et al. August 12, 2	2014-08-12
Macromolecular, Amphiphilic Compounds As Water Retention Agents For Construction Chemistry Systems, In Particular For Well Cementing App 20130233552 - Fogel; Yulia ; et al.	2013-09-12
Use Of Hydrophobically Associated Copolymer As An Additive In Specific Oilfield Applications App 20120129734 - REICHENBACH-KLINKE; Roland ; et al.	2012-05-24
Copolymer based on a sulfonic acid-containing compound Grant 8,148,304 - Spindler , et al. April 3, 2	2012-04-03
Macromolecular, Amphiphilic Compounds As Water Retention Agents For Construction Chemistry Systems, In Particular For Well Cementing App 20110207845 - Fogel; Yulia ; et al.	2011-08-25
Copolymer Based On A Sulfonic Acid-containing Compound App 20100305007 - Spindler; Christian ; et al.	2010-12-02
Graft Polymer Mixture App 20100160488 - Assmann; Andrea ; et al.	2010-06-24

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