Growing community of inventors

Bethel, CT, United States of America

Cliff Steffen

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 25

Cliff SteffenNicholas P Cappelli (1 patent)Cliff SteffenCliff Steffen (1 patent)Nicholas P CappelliNicholas P Cappelli (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Purdue Frederick Company (1 from 27 patents)


1 patent:

1. 4445626 - Metering device for dispensing selected amounts of viscous material

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as of
1/9/2026
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