Growing community of inventors

East Greenwich, RI, United States of America

Rolf Richter

Average Co-Inventor Count = 2.10

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 = 98

Rolf RichterBarry D Colvin (6 patents)Rolf RichterDavid Guay (3 patents)Rolf RichterJesse Alvin Faunce (1 patent)Rolf RichterRolf Richter (7 patents)Barry D ColvinBarry D Colvin (26 patents)David GuayDavid Guay (3 patents)Jesse Alvin FaunceJesse Alvin Faunce (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Aspects, Inc. (6 from 41 patents)

2. Xodar Corporation (1 from 2 patents)


7 patents:

1. 9173381 - Nectar feeder with float and valve

2. 9004007 - Nectar feeder having a float with rounded bottom

3. 8863692 - Nectar feeder having a float with flush stopper

4. 8863691 - Nectar feeder with float and valve

5. 8651054 - Bird feeder with removable ports

6. 7946249 - Nectar feeder with float and valve

7. 4118447 - Aerator containing a ballast charge

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as of
12/17/2025
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