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South Richfield, MN, United States of America

Lisbeth T Pfeiffer

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 = 16

Lisbeth T Pfeiffer ↔ Robert W Pfeiffer (1 patent)Lisbeth T PfeifferLisbeth T Pfeiffer (1 patent)Robert W PfeifferRobert W Pfeiffer (8 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Stone & Webster Engineering Corp. (1 from 122 patents)


1 patent:

1. 4756886 - Rough cut solids separator

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12/27/2025
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