Growing community of inventors

Geneva, IL, United States of America

Robert A Shiffler

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 = 8

Robert A ShifflerMichael P Morge (1 patent)Robert A ShifflerRobert A Shiffler (1 patent)Michael P MorgeMichael P Morge (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. 4067588 - Ladder assembly for construction vehicles

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as of
1/18/2026
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