Growing community of inventors

White Bear Lake, MN, United States of America

Ronald O Zembke, Deceased

Average Co-Inventor Count = 6.00

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 = 66

Ronald O Zembke, Deceased ↔ Dennis G Welygan (1 patent)Ronald O Zembke, Deceased ↔ Loren L Barber, Jr (1 patent)Ronald O Zembke, Deceased ↔ Richard M Pihl (1 patent)Ronald O Zembke, Deceased ↔ Duane J Hayes (1 patent)Ronald O Zembke, Deceased ↔ R Eugene Hardwick (1 patent)Ronald O Zembke, DeceasedRonald O Zembke, Deceased (1 patent)Dennis G WelyganDennis G Welygan (40 patents)Loren L Barber, JrLoren L Barber, Jr (26 patents)Richard M PihlRichard M Pihl (22 patents)Duane J HayesDuane J Hayes (5 patents)R Eugene HardwickR Eugene Hardwick (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Minnesota Mining and Manufacturing Company (1 from 7,865 patents)


1 patent:

1. 5443906 - Abrasive filaments comprising abrasive-filled thermoplastic elastomer,

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as of
12/7/2025
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