Growing community of inventors

Stamford, United Kingdom

David A Whitehead

Average Co-Inventor Count = 1.50

ph-index = 2

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 = 13

David A WhiteheadLaurence D Curley (1 patent)David A WhiteheadRodney A Bedborough (1 patent)David A WhiteheadDavid A Whitehead (2 patents)Laurence D CurleyLaurence D Curley (1 patent)Rodney A BedboroughRodney A Bedborough (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Massey-ferguson-perkins Limited (1 from 6 patents)

2. Perkins Engine Group Limited (1 from 1 patent)


2 patents:

1. 4502452 - Valve

2. 4479463 - Engine sump

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as of
12/20/2025
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