Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Roland J. Koestner
Webster, NY
US
1 patent
2 Patents
US11967721
2024
Battery with Positive Electrodes
GM GLOBAL TECHNOLOGY OPERATIONS LLC
0 cites
US11799088
2023
Fuel Cell Cathode and Fuel Cell System Including a Polymeric Additive
GM Global Technology Operations LLC
0 cites