Growing community of inventors

West Midlands, United Kingdom

Darrel Hannaford

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 = 4

Darrel HannafordBrian L Rang (1 patent)Darrel HannafordJames E Bohn (1 patent)Darrel HannafordDarrel Hannaford (1 patent)Brian L RangBrian L Rang (10 patents)James E BohnJames E Bohn (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Parker-hannifin Corporation (1 from 1,660 patents)


1 patent:

1. 9404545 - Combined power take-off and hydraulic pump assembly

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as of
12/15/2025
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