Growing community of inventors

Varna, IL, United States of America

David R Berta

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 = 7

David R Berta ↔ Aubery W Penn (1 patent)David R Berta ↔ Terry L Schaffer (1 patent)David R BertaDavid R Berta (1 patent)Aubery W PennAubery W Penn (3 patents)Terry L SchafferTerry L Schaffer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Caterpillar Inc. (1 from 9,500 patents)


1 patent:

1. 6609484 - Engine cooling system

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/18/2026
Loading…