Mark A. Risberg

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Sheboygan, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressurized flush toilet tank
- Patent number 5,046,201
- Issue date Sep 10, 1991
- Kohler Co.
- Michael D. Steinhardt
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Shroud for lavatory trap
- Patent number 4,646,370
- Issue date Mar 3, 1987
- Kohler Co.
- Mark A. Risberg
- E03 - WATER SUPPLY SEWERAGE