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Stefan Hilf
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Zwingenberg, DE
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Patents Grants
last 30 patents
Information
Patent Grant
High viscosity polyacrylate base fluids
Patent number
11,965,140
Issue date
Apr 23, 2024
Evonik Operations GmbH
Stefan Karl Maier
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Acrylate-olefin copolymers as high viscosity base fluids
Patent number
11,618,797
Issue date
Apr 4, 2023
Evonik Operations GmbH
Stefan Karl Maier
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Patents Applications
last 30 patents
Information
Patent Application
HIGH VISCOSITY BASE FLUIDS BASED ON OIL COMPATIBLE POLYESTERS PREPA...
Publication number
20230257674
Publication date
Aug 17, 2023
Evonik Operations GmbH
Stefan Karl MAIER
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
HIGH VISCOSITY BASE FLUIDS BASED ON OIL COMPATIBLE POLYESTERS
Publication number
20230257673
Publication date
Aug 17, 2023
Evonik Operations GmbH
Stefan Karl MAIER
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
HIGH VISCOSITY POLYACRYLATE BASE FLUIDS
Publication number
20220372388
Publication date
Nov 24, 2022
Evonik Operations GmbH
Stefan Karl Maier
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ACRYLATE-OLEFIN COPOLYMERS AS HIGH VISCOSITY BASE FLUIDS
Publication number
20220195091
Publication date
Jun 23, 2022
Evonik Operations GmbH
Stefan Karl Maier
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...