Growing community of inventors

Tarzana, CA, United States of America

Karl E Knapp

Average Co-Inventor Count = 1.50

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 = 130

Karl E KnappPorponth Sichanugrist (1 patent)Karl E KnappEric Elias (1 patent)Karl E KnappKarl E Knapp (3 patents)Porponth SichanugristPorponth Sichanugrist (1 patent)Eric EliasEric Elias (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,912 patents)

2. Atlantic Richfield Company (1 from 1,851 patents)

3. Siemens Solar Industries (1 from 16 patents)


3 patents:

1. 5211824 - Method and apparatus for sputtering of a liquid

2. 4873118 - Oxygen glow treating of ZnO electrode for thin film silicon solar cell

3. 4790883 - Low light level solar cell

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as of
1/13/2026
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