Elliot Powidajko

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Hamilton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Railroad hopper car structure and gate therefor
- Patent number 11,697,437
- Issue date Jul 11, 2023
- National Steel Car Limited
- Elliot Powidajko
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
RAILROAD HOPPER CAR WITH FLOW THROUGH STRUCTURE
- Publication number 20230399033
- Publication date Dec 14, 2023
- National Steel Car Limited
- Oliver M. Veit
- B61 - RAILWAYS
Information Patent Application
RAILROAD HOPPER CAR STRUCTURE AND GATE THEREFOR
- Publication number 20200339163
- Publication date Oct 29, 2020
- National Steel Car Limited
- Elliot Powidajko
- B61 - RAILWAYS