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Patents Grantslast 30 patents

Information Patent Grant
Internal polymeric breaker for viscoelastic surfactant-based fluids
- Patent number 10,017,683
- Issue date Jul 10, 2018
- Akzo Nobel Chemicals International B.V.
- Qingwen Wendy Yuan-Huffman
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
OXASPIRO SUBSTITUTED PYRROLOPYRAZOLE DERIVATIVE, INTERMEDIATE THERE...
- Publication number 20240109895
- Publication date Apr 4, 2024
- SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD.
- Zhenya ZENG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Internal Polymeric Breaker for Viscoelastic Surfactant-Based Fluids
- Publication number 20170313929
- Publication date Nov 2, 2017
- Akzo Nobel Chemicals International B.V.
- Qingwen Wendy YUAN-HUFFMAN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...