Michael Johnson

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Toronto, CA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for opening and closing overhead sectional doors
- Patent number 8,375,635
- Issue date Feb 19, 2013
- Richard Hellinga
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Vehicle with controlled door operation
- Patent number 8,217,755
- Issue date Jul 10, 2012
- Unicell Limited
- Roger J. Martin
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Method for controlling the speed of closing of a movable element
- Patent number 7,213,372
- Issue date May 8, 2007
- Multimatic Inc.
- Richard J. Hellinga
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Method and apparatus for controlling the speed of closing of a mova...
- Patent number 6,883,275
- Issue date Apr 26, 2005
- Multimatic, Inc.
- Richard J. Hellinga
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR OPENING AND CLOSING OVERHEAD SECTIONAL DOORS
- Publication number 20110047877
- Publication date Mar 3, 2011
- Richard Hellinga
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Vehicle with controlled door operation
- Publication number 20100073131
- Publication date Mar 25, 2010
- Roger J. Martin
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Method for controlling the speed of closing of a movable element
- Publication number 20050097822
- Publication date May 12, 2005
- MULTIMATIC, INC.
- Richard J. Hellinga
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Method and apparatus for controlling the speed of closing of a mova...
- Publication number 20040016180
- Publication date Jan 29, 2004
- Richard J. Hellinga
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES