Janusz Kwiatkowski

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Arlington, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Snow stop with convolute hook
- Patent number 5,655,334
- Issue date Aug 12, 1997
- M.J. Mullane Company, Inc.
- Janusz Kwiatkowski
- E04 - BUILDING
Information Patent Grant
Snow stop roofing with protrusion and/or wedge snow stop
- Patent number 5,570,557
- Issue date Nov 5, 1996
- Janusz Kwiatkowski
- E04 - BUILDING
Information Patent Grant
Snow stop
- Patent number 5,371,979
- Issue date Dec 13, 1994
- M. J. Mullane Co.
- Janusz Kwiatkowski
- E04 - BUILDING