Growing community of inventors

Joliet, IL, United States of America

Donald E Ribbing

Average Co-Inventor Count = 3.00

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 = 30

Donald E RibbingEugene L Helton (1 patent)Donald E RibbingNathan Gutman (1 patent)Donald E RibbingDonald E Ribbing (1 patent)Eugene L HeltonEugene L Helton (11 patents)Nathan GutmanNathan Gutman (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Caterpillar Tractor Co. (1 from 1,981 patents)


1 patent:

1. 3961788 - Bulldozer blade with improved tip and end bit

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12/19/2025
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