Ray Polanski

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Erie, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Removable reversible handrail assistance device
- Patent number 9,637,930
- Issue date May 2, 2017
- Michael Joseph Grudzien
- E04 - BUILDING
Information Patent Grant
Removable handrail assistance device
- Patent number 8,925,155
- Issue date Jan 6, 2015
- Michael Joseph Grudzien
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Removable Reversible Handrail Assistance Device
- Publication number 20150021536
- Publication date Jan 22, 2015
- Michael Joseph Grudzien
- E04 - BUILDING
Information Patent Application
Removable Handrail Assistance Device
- Publication number 20130299762
- Publication date Nov 14, 2013
- Michael Joseph Grudzien
- E04 - BUILDING