Growing community of inventors

Freeland, MD, United States of America

Robert E Limbaugh

Average Co-Inventor Count = 4.44

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 = 34

Robert E Limbaugh ↔ Marco Cattaneo (3 patents)Robert E Limbaugh ↔ John D Crisco (3 patents)Robert E Limbaugh ↔ Keith A Ballard (3 patents)Robert E Limbaugh ↔ Dave A Fitzpatrick (3 patents)Robert E Limbaugh ↔ Matthew S Polk, Jr (1 patent)Robert E Limbaugh ↔ James M Herd (1 patent)Robert E Limbaugh ↔ Niklas Jacob (1 patent)Robert E LimbaughRobert E Limbaugh (4 patents)Marco CattaneoMarco Cattaneo (17 patents)John D CriscoJohn D Crisco (6 patents)Keith A BallardKeith A Ballard (3 patents)Dave A FitzpatrickDave A Fitzpatrick (3 patents)Matthew S Polk, JrMatthew S Polk, Jr (22 patents)James M HerdJames M Herd (1 patent)Niklas JacobNiklas Jacob (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Britannia Investment Corporation (4 from 15 patents)


4 patents:

1. 6721434 - Loudspeaker mounting system

2. D463407 - Speaker

3. D448360 - Portion of a speaker

4. D440559 - Portion of a speaker

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as of
1/18/2026
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