Growing community of inventors

Libertyville, IL, United States of America

Francis H Zimmerman

Average Co-Inventor Count = 5.65

ph-index = 5

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 = 103

Francis H ZimmermanKenneth A Kaczmarz (4 patents)Francis H ZimmermanMitchell S Mlynarczyk (4 patents)Francis H ZimmermanMatthew R Greiner (3 patents)Francis H ZimmermanErnest Vaughn (2 patents)Francis H ZimmermanKenneth D Graw (2 patents)Francis H ZimmermanJohn B Payson (1 patent)Francis H ZimmermanBrock E Robinson (1 patent)Francis H ZimmermanBrian R Hill (1 patent)Francis H ZimmermanRobert Brewczynski (1 patent)Francis H ZimmermanSteven A Belzek (1 patent)Francis H ZimmermanBrian R Hill (1 patent)Francis H ZimmermanKenneth A Kaczmarz (1 patent)Francis H ZimmermanMitch S Mlynarczyk (1 patent)Francis H ZimmermanMatthew R Greiner (1 patent)Francis H ZimmermanFrancis H Zimmerman (5 patents)Kenneth A KaczmarzKenneth A Kaczmarz (17 patents)Mitchell S MlynarczykMitchell S Mlynarczyk (10 patents)Matthew R GreinerMatthew R Greiner (6 patents)Ernest VaughnErnest Vaughn (2 patents)Kenneth D GrawKenneth D Graw (2 patents)John B PaysonJohn B Payson (6 patents)Brock E RobinsonBrock E Robinson (5 patents)Brian R HillBrian R Hill (4 patents)Robert BrewczynskiRobert Brewczynski (2 patents)Steven A BelzekSteven A Belzek (1 patent)Brian R HillBrian R Hill (1 patent)Kenneth A KaczmarzKenneth A Kaczmarz (1 patent)Mitch S MlynarczykMitch S Mlynarczyk (1 patent)Matthew R GreinerMatthew R Greiner (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Compx International Inc. (4 from 61 patents)

2. Advance Grinding, Inc. (1 from 1 patent)


5 patents:

1. 8727392 - Convertible motorized latch

2. 8403376 - Convertible motorized latch

3. 8199019 - Field retrofittable refrigerator lock with temperature monitoring, temperature based access control and alarming

4. 7768378 - Field retrofittable refrigerator lock with audit trail

5. D534785 - Flush lock latch

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as of
12/8/2025
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