Ronald Kuehne

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Lincoln, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tank cover access hatch with safety barrier
- Patent number 10,329,812
- Issue date Jun 25, 2019
- Hallsten Corporation
- Jeffrey A. Hallsten
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Trench spanning modules in a biofilter floor assembly
- Patent number 10,124,291
- Issue date Nov 13, 2018
- Hallsten Corporation
- Jeffrey A. Hallsten
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL