Growing community of inventors

Everett, WA, United States of America

John M Haugen, Jr

Average Co-Inventor Count = 1.60

ph-index = 1

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 = 34

John M Haugen, JrCharles T Higgins (1 patent)John M Haugen, JrKalvin L Holler (1 patent)John M Haugen, JrJohn M Haugen, Jr (2 patents)Charles T HigginsCharles T Higgins (2 patents)Kalvin L HollerKalvin L Holler (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)

2. Crown Photo Systems (1 from 1 patent)


2 patents:

1. 5568215 - Film cartridge holder and adapter unit

2. 5016752 - Picture and negative storage container

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as of
12/17/2025
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