Inventor · Hamburg, DE

Oliver Petermann

22Patents
1h-index
17Co-inventors
46Inventor score

Filing activity: Oct 24, 2012 → Aug 22, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US9453081B2 Process of preparing an ester of a cellulose ether Chemistry; Metallurgy 2 Active
US9364546B2 Melt-extruded composition comprising a cellulose ether Performing Operations; Transporting 1 Active
US9320799B2 Esterified cellulose ethers having a specific substituent distribution Chemistry; Metallurgy 1 Active
US9757465B2 Composition comprising an organic diluent and a cellulose ether Chemistry; Metallurgy 1 Active
US9616036B2 Sustained release dosage forms Chemistry; Metallurgy 1 Active
US9486532B2 Esterified cellulose ethers of low viscosity Chemistry; Metallurgy 0 Active
US10526421B2 Esterified cellulose ethers of low acetone-insoluble content Human Necessities 0 Active
US11142633B2 Aqueous composition comprising dispersed esterified cellulose ether Chemistry; Metallurgy 0 Active
US10759873B2 Esterified cellulose ethers of high molecular weight and homogeneity Human Necessities 0 Active
US10196461B2 Efficient process for preparing an ester of a cellulose ether Chemistry; Metallurgy 0 Active
US10947322B2 Esterified cellulose ethers comprising phthalyl groups Chemistry; Metallurgy 0 Active
US9745387B2 Partially cross-linked esterified cellulose ethers Human Necessities 0 Active
US10377835B2 Water-soluble esterified cellulose ethers Chemistry; Metallurgy 0 Active
US9617351B2 Esterified cellulose ethers of very low viscosity Human Necessities 0 Active
US10730956B2 Process for producing a water-soluble cellulose derivative having a reduced content of water-insoluble particles Chemistry; Metallurgy 0 Active
US10730957B2 Process of preparing an esterified cellulose ether in the presence of an alkali metal carboxylate and an aliphatic carboxylic acid Chemistry; Metallurgy 0 Active
US10961355B2 Aqueous solution of cellulose ether acetate Chemistry; Metallurgy 0 Active
US10214594B2 Water-soluble esterified cellulose ethers having a low degree of neutralization Human Necessities 0 Active
US9890220B2 Esterified cellulose ethers of very high molecular weight Human Necessities 0 Active
US9587037B2 Process for recovering an esterified cellulose ether from a reaction product mixture Chemistry; Metallurgy 0 Active
US10513599B2 Cellulose ether acetate phthalates Human Necessities 0 Active
US10759874B2 Gelling esterified cellulose ethers Human Necessities 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.