Douglas George Robertson

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Charlotte, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Membranes, calendered microporous membranes, battery separators, an...
- Patent number 12,040,456
- Issue date Jul 16, 2024
- Celgard, LLC
- Kristoffer K. Stokes
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Membranes, calendered microporous membranes, battery separators, an...
- Patent number 11,569,549
- Issue date Jan 31, 2023
- Celgard, LLC
- Kristoffer K. Stokes
- B32 - LAYERED PRODUCTS
Information Patent Grant
Membranes, calendered microporous membranes, battery separators, an...
- Patent number 10,777,800
- Issue date Sep 15, 2020
- Celgard, LLC
- Kristoffer K. Stokes
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
IMPROVED MEMBRANES, CALENDERED MICROPOROUS MEMBRANES, BATTERY SEPAR...
- Publication number 20240396097
- Publication date Nov 28, 2024
- CELGARD, LLC
- Kristoffer K. Stokes
- B32 - LAYERED PRODUCTS
Information Patent Application
MEMBRANES, CALENDERED MICROPOROUS MEMBRANES, BATTERY SEPARATORS, AN...
- Publication number 20230238587
- Publication date Jul 27, 2023
- CELGARD, LLC
- Kristoffer K. Stokes
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MEMBRANES, CALENDERED MICROPOROUS MEMBRANES, BATTERY SEPARATORS, AN...
- Publication number 20210036293
- Publication date Feb 4, 2021
- CELGARD, LLC
- Kristoffer K. Stokes
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MEMBRANES, CALENDERED MICROPOROUS MEMBRANES, BATTERY SEPARATORS, AN...
- Publication number 20170084898
- Publication date Mar 23, 2017
- CELGARD, LLC
- Kristoffer K. Stokes
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CONTINUOUS WEB INLINE TESTING APPARATUS, DEFECT MAPPING SYSTEM AND...
- Publication number 20150115976
- Publication date Apr 30, 2015
- CELGARD, LLC
- Changqing Wang Adams
- G01 - MEASURING TESTING