Growing community of inventors

Golden, CO, United States of America

John J Keller

Average Co-Inventor Count = 3.00

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 = 198

John J KellerRobert W Langley (4 patents)John J KellerSteven Gage Urdahl (4 patents)John J KellerJohn J Keller (4 patents)Robert W LangleyRobert W Langley (31 patents)Steven Gage UrdahlSteven Gage Urdahl (9 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Cobe Laboratories, Inc. (3 from 213 patents)

2. Gambro, Inc. (1 from 73 patents)


4 patents:

1. 6233525 - Blood component collection system with optimizer

2. 5970423 - Blood component collection system with optimizer

3. 5712798 - Blood component collection system with optimizer

4. 5496265 - Blood component collection system with optimizer

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1/13/2026
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