Growing community of inventors

Altoona, IA, United States of America

John P Maher

Average Co-Inventor Count = 2.67

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 = 3

John P Maher ↔ Randy Ray Runquist (1 patent)John P Maher ↔ Clint A Weinberg (1 patent)John P Maher ↔ Chris Pfoltner (1 patent)John P Maher ↔ Steve Van Zee (1 patent)John P MaherJohn P Maher (2 patents)Randy Ray RunquistRandy Ray Runquist (27 patents)Clint A WeinbergClint A Weinberg (8 patents)Chris PfoltnerChris Pfoltner (3 patents)Steve Van ZeeSteve Van Zee (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Vermeer Manufacturing Company, Inc. (2 from 469 patents)


2 patents:

1. 9751089 - Wear-resistant cutting teeth, cutting heads and related apparatus

2. 9611698 - Hole opener bearing arrangement

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as of
12/18/2025
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