Growing community of inventors

Kristiansand, Norway

John Zahl

Average Co-Inventor Count = 3.85

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 = 1

John ZahlHarold Tenorio (6 patents)John ZahlJon Tyler (6 patents)John ZahlRoss Edward Stevenson (3 patents)John ZahlNicolas Arteaga (1 patent)John ZahlVikas Rakhunde (1 patent)John ZahlMatthew David Givens (1 patent)John ZahlSteven Shimonek (1 patent)John ZahlJohn Zahl (6 patents)Harold TenorioHarold Tenorio (14 patents)Jon TylerJon Tyler (10 patents)Ross Edward StevensonRoss Edward Stevenson (12 patents)Nicolas ArteagaNicolas Arteaga (20 patents)Vikas RakhundeVikas Rakhunde (19 patents)Matthew David GivensMatthew David Givens (13 patents)Steven ShimonekSteven Shimonek (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Schlumberger Technology Corporation (6 from 10,178 patents)


6 patents:

1. 11993987 - Gooseneck connector system

2. 11965386 - Riser bolt torque system

3. 11920422 - Riser collet connector systems and methods

4. 11767721 - Riser bolt torque system

5. 11603718 - Gooseneck connector system

6. 11401753 - Cable management on marine drilling risers

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as of
12/13/2025
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