Growing community of inventors

Oakbrook Terrace, IL, United States of America

Andrew B Witkowski

Average Co-Inventor Count = 2.00

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 = 14

Andrew B Witkowski ↔ Tyler R Vincer (1 patent)Andrew B Witkowski ↔ Steven C Bielaga (1 patent)Andrew B Witkowski ↔ John J Egan (1 patent)Andrew B Witkowski ↔ Timothy Yoon (0 patent)Andrew B Witkowski ↔ Thomas G Grotto (0 patent)Andrew B WitkowskiAndrew B Witkowski (1 patent)Tyler R VincerTyler R Vincer (1 patent)Steven C BielagaSteven C Bielaga (1 patent)John J EganJohn J Egan (1 patent)Timothy YoonTimothy Yoon (0 patent)Thomas G GrottoThomas G Grotto (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Harvester Company (1 from 481 patents)

2. International Engine Intellectual Property Company, LLC (437 patents)


1 patent:

1. 4512299 - Automotive engine with improved multifilter lubrication system

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as of
12/14/2025
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