Door & Window Guard Systems, Inc.

Calculating rank

USPTO Granted Patents = 4

Trademarks = 3

Forward Citations = 17

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3 inventors (with patents filed for the assignee):

James D Glass (3 out of 3 patents)

William F Laubach (2 out of 8 patents)

Ryan Welage (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 12264534 - Door guard (2025-04-01),

2. 9963929 - Assembly and method for securing a door opening or other opening of a building structure (2018-05-08),

3. 8756883 - Assembly and method for securing a door opening or other opening of a building structure (2014-06-24),

4. 8656664 - Assembly and method for securing an opening of a building structure (2014-02-25),

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USPTO Data Jan 1 1976 - Nov 10 2026

4 Patents

#1 in Inverness, IL

#2,844 in Illinois

#60,778 in US

Inverness, IL, United States of America

Door & Window Guard Systems, Inc.

Forward Citations = 17

3 inventors:

James D Glass (3 out of 3 patents)

William F Laubach (2 out of 8 patents)

Ryan Welage (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Door & Window Guard Systems, Inc.. Retrieved from https://idiyas.com/company/door-and-window-guard-systems

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]