Growing community of inventors

Sycamore, IL, United States of America

Marlin D Crown

Average Co-Inventor Count = 1.60

ph-index = 3

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 = 73

Marlin D CrownJames R Johnston (2 patents)Marlin D CrownJames A Edeus (1 patent)Marlin D CrownMarlin D Crown (4 patents)James R JohnstonJames R Johnston (14 patents)James A EdeusJames A Edeus (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. National Manufacturing Co. (3 from 40 patents)

2. National Manufacturing (1 from 1 patent)


4 patents:

1. 4829794 - Padlock

2. 4784416 - Door latch

3. 4732418 - Knob latch

4. 4643469 - Gate latch

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as of
12/11/2025
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