Growing community of inventors

Minneapolis, MN, United States of America

George L Engstrom

Average Co-Inventor Count = 3.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 31

George L EngstromCardell E Miller (2 patents)George L EngstromRussell W Waldo (2 patents)George L EngstromGene A Tracy (1 patent)George L EngstromLouis D Huot (1 patent)George L EngstromJohn Thorson (1 patent)George L EngstromGeorge L Engstrom (3 patents)Cardell E MillerCardell E Miller (9 patents)Russell W WaldoRussell W Waldo (7 patents)Gene A TracyGene A Tracy (7 patents)Louis D HuotLouis D Huot (2 patents)John ThorsonJohn Thorson (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ideal Security Hardware Corporation (2 from 13 patents)

2. Ideal Security Hardward Corporation (1 from 2 patents)


3 patents:

1. 4588221 - Segmented door opener

2. 4570985 - Locking apparatus for use with a panel slideable in a plane

3. 4332407 - Automatically locking crossbolt deadlock

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idiyas.com
as of
12/20/2025
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