Growing community of inventors

Storrington, United Kingdom

Frederick John Underwood

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 = 2

Frederick John Underwood ↔ Clive Marcus Lloyd Tunna (1 patent)Frederick John Underwood ↔ Mark Christopher Hope (1 patent)Frederick John Underwood ↔ Mark Hope (0 patent)Frederick John UnderwoodFrederick John Underwood (1 patent)Clive Marcus Lloyd TunnaClive Marcus Lloyd Tunna (4 patents)Mark Christopher HopeMark Christopher Hope (2 patents)Mark HopeMark Hope (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Edwards Limited (1 from 274 patents)


1 patent:

1. 7819646 - Rotary piston vacuum pump with washing installation

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1/22/2026
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