Growing community of inventors

Alta Loma, CA, United States of America

Knut H Larsen

Average Co-Inventor Count = 2.57

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 = 69

Knut H LarsenDeborah L Demelo (2 patents)Knut H LarsenAshley L Larsen (2 patents)Knut H LarsenCharles D Williams (1 patent)Knut H LarsenKnut H Larsen (3 patents)Deborah L DemeloDeborah L Demelo (2 patents)Ashley L LarsenAshley L Larsen (2 patents)Charles D WilliamsCharles D Williams (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (2 from 832,812 patents)

2. Ashley Products Corporation (1 from 1 patent)


3 patents:

1. 5855186 - Sanitization system for cat litter boxes

2. 5775258 - Sanitization system for cat litter boxes

3. 4404006 - Filter device

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as of
12/18/2025
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