Growing community of inventors

Ann Arbor, MI, United States of America

John A Calkins

Average Co-Inventor Count = 7.00

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 = 2

John A CalkinsRobert Charles Simon, Jr (1 patent)John A CalkinsRichard A Marsh (1 patent)John A CalkinsDavid C Poirier (1 patent)John A CalkinsDaniel B O'Connell (1 patent)John A CalkinsPeter M Medich (1 patent)John A CalkinsRichard C Mamolen (1 patent)John A CalkinsJohn A Calkins (1 patent)Robert Charles Simon, JrRobert Charles Simon, Jr (35 patents)Richard A MarshRichard A Marsh (18 patents)David C PoirierDavid C Poirier (14 patents)Daniel B O'ConnellDaniel B O'Connell (7 patents)Peter M MedichPeter M Medich (5 patents)Richard C MamolenRichard C Mamolen (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gm Global Technolgoy Operations, Inc. (1 from 30,943 patents)


1 patent:

1. 4848189 - Engine throttle stop control system

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as of
12/7/2025
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