Growing community of inventors

Carlsbad, CA, United States of America

John C Schumacher

Average Co-Inventor Count = 1.96

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 = 76

John C SchumacherLawrence B Anderson (2 patents)John C SchumacherJoseph C McMenamin (1 patent)John C SchumacherTimothy E Hammon (1 patent)John C SchumacherHarold R Cowles (1 patent)John C SchumacherJohn C Schumacher (3 patents)Lawrence B AndersonLawrence B Anderson (4 patents)Joseph C McMenaminJoseph C McMenamin (3 patents)Timothy E HammonTimothy E Hammon (2 patents)Harold R CowlesHarold R Cowles (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Custom Engineered Materials Inc. (2 from 3 patents)

2. Diamond Cubic Liquidation Trust (1 from 1 patent)


3 patents:

1. 5126117 - Device for preventing accidental releases of hazardous gases

2. 4966611 - Removal and destruction of volatile organic compounds from gas streams

3. 4891201 - Ultra-pure epitaxial silicon

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as of
1/6/2026
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