Growing community of inventors

Loxwood, United Kingdom

David H Powell

Average Co-Inventor Count = 2.45

ph-index = 9

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 = 489

David H PowellAdrian Barclay Caroen (7 patents)David H PowellRichard W Seymour (5 patents)David H PowellAkemi Tomita (2 patents)David H PowellPaul S Montgomery (1 patent)David H PowellShigeru Hanagata (1 patent)David H PowellHerbert H Pfeifer (1 patent)David H PowellPhilip G Yurkonis (1 patent)David H PowellCraig M Leverault (1 patent)David H PowellMichael S Dann (1 patent)David H PowellHideyuki Yamamoto (1 patent)David H PowellShingo Ishizaka (1 patent)David H PowellRichard W Seymour (1 patent)David H PowellDavid H Powell (13 patents)Adrian Barclay CaroenAdrian Barclay Caroen (45 patents)Richard W SeymourRichard W Seymour (9 patents)Akemi TomitaAkemi Tomita (3 patents)Paul S MontgomeryPaul S Montgomery (46 patents)Shigeru HanagataShigeru Hanagata (42 patents)Herbert H PfeiferHerbert H Pfeifer (39 patents)Philip G YurkonisPhilip G Yurkonis (32 patents)Craig M LeveraultCraig M Leverault (16 patents)Michael S DannMichael S Dann (15 patents)Hideyuki YamamotoHideyuki Yamamoto (15 patents)Shingo IshizakaShingo Ishizaka (14 patents)Richard W SeymourRichard W Seymour (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Aqualisa Products Limited (7 from 14 patents)

2. Casio Computer Co., Ltd. (5 from 5,225 patents)

3. Sun Microsystems, Inc. (1 from 7,642 patents)


13 patents:

1. D406879 - Valve

2. D406638 - Valve

3. D394899 - Shower head

4. D386244 - Shower head

5. D385333 - Combined handshower, soap dish and support assembly

6. D385334 - Shower head

7. D385335 - Shower head

8. D378740 - Wrist watch

9. D378198 - Wrist watch

10. D371307 - Wrist watch

11. D365524 - Wrist watch

12. D365525 - Wrist watch

13. D362236 - Portable computer

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as of
12/25/2025
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