Growing community of inventors

Pella, IA, United States of America

David Joseph Hackman

Average Co-Inventor Count = 4.80

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

David Joseph Hackman ↔ Louis Carl Hartke (1 patent)David Joseph Hackman ↔ Daniel Ray Erickson (1 patent)David Joseph Hackman ↔ Tenny Lynn Hinshaw (1 patent)David Joseph Hackman ↔ Daniel L Gustafson (1 patent)David Joseph Hackman ↔ Chad A Bartels (1 patent)David Joseph Hackman ↔ Orin L Miller (1 patent)David Joseph Hackman ↔ John W Philbrook (1 patent)David Joseph Hackman ↔ Edward Darrin Hastings (1 patent)David Joseph Hackman ↔ John Wesley Philbrook (0 patent)David Joseph HackmanDavid Joseph Hackman (2 patents)Louis Carl HartkeLouis Carl Hartke (9 patents)Daniel Ray EricksonDaniel Ray Erickson (3 patents)Tenny Lynn HinshawTenny Lynn Hinshaw (2 patents)Daniel L GustafsonDaniel L Gustafson (1 patent)Chad A BartelsChad A Bartels (1 patent)Orin L MillerOrin L Miller (1 patent)John W PhilbrookJohn W Philbrook (1 patent)Edward Darrin HastingsEdward Darrin Hastings (1 patent)John Wesley PhilbrookJohn Wesley Philbrook (0 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. 11891133 - Vehicles having a moveable control console

2. 9945180 - Drilling machine and method

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idiyas.com
as of
12/17/2025
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