Growing community of inventors

Reading, United Kingdom

Christopher John Stevens

Average Co-Inventor Count = 1.17

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 = 270

Christopher John StevensTerence Gordon Royle (1 patent)Christopher John StevensGraham John Simms (1 patent)Christopher John StevensPaul Leslie Warrick (1 patent)Christopher John StevensOliver David Oglesby (1 patent)Christopher John StevensRobert White (1 patent)Christopher John StevensEdward Neill Forsdike (5 patents)Christopher John StevensChristopher John Stevens (15 patents)Terence Gordon RoyleTerence Gordon Royle (23 patents)Graham John SimmsGraham John Simms (19 patents)Paul Leslie WarrickPaul Leslie Warrick (12 patents)Oliver David OglesbyOliver David Oglesby (9 patents)Robert WhiteRobert White (8 patents)Edward Neill ForsdikeEdward Neill Forsdike (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Gillette Company (10 from 2,658 patents)

2. Braun Gmbh (3 from 1,012 patents)

3. Berol Corporation (2 from 102 patents)


15 patents:

1. 9643327 - Wet shaving razor

2. 8938885 - Razor handle with a rotatable portion

3. 8205344 - Safety razor having pivotable blade unit

4. 7818884 - Shaving apparatus

5. RE40631 - Correction tape dispenser

6. 7111399 - Undercutter for a shaving apparatus

7. 7065877 - Undercutter for a shaving apparatus

8. 6935027 - Undercutter for a shaving apparatus

9. 6568450 - Tape dispenser

10. 6231257 - Marking instruments

11. 6135660 - Marking instruments

12. 6112796 - Tape dispenser

13. 5820728 - Tape Dispenser

14. 5714035 - Correction tape dispenser

15. 5393368 - Correction tape dispenser

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as of
12/9/2025
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