Growing community of inventors

Columbus, IN, United States of America

Robert C Ahrmann

Average Co-Inventor Count = 3.33

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 = 16

Robert C Ahrmann ↔ Richard J Gustafson (4 patents)Robert C Ahrmann ↔ Alan R Bennett (4 patents)Robert C Ahrmann ↔ Michael Lee Stark, Ii (4 patents)Robert C Ahrmann ↔ Paul Matthew Biedler (1 patent)Robert C AhrmannRobert C Ahrmann (5 patents)Richard J GustafsonRichard J Gustafson (18 patents)Alan R BennettAlan R Bennett (4 patents)Michael Lee Stark, IiMichael Lee Stark, Ii (4 patents)Paul Matthew BiedlerPaul Matthew Biedler (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cummins Inc. (5 from 1,599 patents)


5 patents:

1. D836505 - Compression relief brake assembly

2. D828249 - Compression relief brake assembly

3. D828250 - Compression relief brake system

4. D813124 - Rocker for compression relief brake

5. 8297048 - Apparatus and method for mounting a close-coupled catalyst

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as of
1/9/2026
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