Douglas J. Gratzer

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Rapid deployable structure for remote installation
- Patent number 8,375,650
- Issue date Feb 19, 2013
- International Towers, Inc.
- Douglas J. Gratzer
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Rapid Deployable Structure for Remote Installation
- Publication number 20110083394
- Publication date Apr 14, 2011
- INTERNATIONAL TOWERS, INC.
- Douglas J. Gratzer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Retractable Hanging Apparatus
- Publication number 20070114196
- Publication date May 24, 2007
- Richard P. Cameron
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS