Growing community of inventors

Lynnfield, MA, United States of America

Douglas Marsden

Average Co-Inventor Count = 4.00

ph-index = 4

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 = 169

Douglas MarsdenBenjamin Janes Beck (4 patents)Douglas MarsdenGlen V Walter (4 patents)Douglas MarsdenDavid Gerard Harting (4 patents)Douglas MarsdenDouglas Marsden (4 patents)Benjamin Janes BeckBenjamin Janes Beck (52 patents)Glen V WalterGlen V Walter (39 patents)David Gerard HartingDavid Gerard Harting (30 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eleven LLC (4 from 6 patents)


4 patents:

1. D496501 - Domed cat litter box

2. 6694922 - Retractable leash assembly

3. D463887 - Ramped cat litter box

4. 6405683 - Retractable leash assembly

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as of
12/26/2025
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