Growing community of inventors

La Porte, IN, United States of America

Harold E Quackenbush

Average Co-Inventor Count = 5.00

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 = 32

Harold E QuackenbushPaul H Harrer (1 patent)Harold E QuackenbushAlvin L Cleek (1 patent)Harold E QuackenbushCharles E Adams (1 patent)Harold E QuackenbushLe Roy Langford (1 patent)Harold E QuackenbushHarold E Quackenbush (1 patent)Paul H HarrerPaul H Harrer (4 patents)Alvin L CleekAlvin L Cleek (3 patents)Charles E AdamsCharles E Adams (3 patents)Le Roy LangfordLe Roy Langford (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Allis-chalmers Corporation (1 from 532 patents)


1 patent:

1. 4074830 - Compressed air seed planter

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as of
12/19/2025
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