Average Co-Inventor Count = 3.00
ph-index = 3
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.
Company Filing History:
1. Compagnie Generale Pour Les Developpements Operationnels Des Richesses (5 from 38 patents)
2. Societe Nationale Elf Aquitaine (production) (4 from 215 patents)
3. Compagnie Francaise Des Petroles (4 from 95 patents)
4. Ateliers Et Chantiers De Bretagne - A.c.b. (4 from 15 patents)
5. Compagnie Maritime D'expertises (4 from 9 patents)
6. Etudes Petrolieres Marines (4 from 7 patents)
7. Compagnie Francaise Des Petroles, Societe Anonyme (2 from 3 patents)
8. Compagnie Maritime D'expertises, Societe Anonyme (2 from 3 patents)
9. Ateliers Et Chantiers De Bretagne-a.c.b., Societe Anonyme (2 from 3 patents)
10. Etudes Petrolieres Marines, Societe a Responsabilite Limitee (2 from 2 patents)
11. Entreprise De Recherches Et D'activites Petrolieres (e.r.a.p.) (1 from 7 patents)
12. Societe Nationale Elf Aquitaine (production), Tour Aquitaine (1 from 4 patents)
13. Compagnie Generale Pour Les Developpements Operationnels De Richesses (1 from 1 patent)
6 patents:
1. 4302652 - Method of welding the ends of submerged pipes by sleeve abutment
2. 4251167 - Method of welding together submerged pipe ends by means of a telescopic
3. 4171175 - Apparatus for underwater welding of pipes
4. 4133180 - Apparatus for welding submerged pipe ends
5. 4103500 - Apparatus for connecting the ends of submerged pipes
6. 4068491 - Method and apparatus for connecting the ends of submerged pipes