Growing community of inventors

Waterloo, IA, United States of America

David A Chekas

Average Co-Inventor Count = 4.00

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 = 0

David A ChekasRandy R Scarf (1 patent)David A ChekasDattatray B Pingle (1 patent)David A ChekasVijay J Kavnekar (1 patent)David A ChekasDavid A Chekas (1 patent)Randy R ScarfRandy R Scarf (8 patents)Dattatray B PingleDattatray B Pingle (7 patents)Vijay J KavnekarVijay J Kavnekar (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Deere & Company (1 from 8,504 patents)


1 patent:

1. 11598235 - Internal combustion engine with internal oil heating of blowby gas

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as of
1/13/2026
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