Growing community of inventors

Angleton, TX, United States of America

Marco Antonio Calzada

Average Co-Inventor Count = 6.00

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 = 8

Marco Antonio Calzada ↔ James Cavitt Garrett (1 patent)Marco Antonio Calzada ↔ Jeff A Lambert (1 patent)Marco Antonio Calzada ↔ Guy Lamonte MClung, Iii (1 patent)Marco Antonio Calzada ↔ James Simpson Grant (1 patent)Marco Antonio Calzada ↔ James Simspon Grant (1 patent)Marco Antonio Calzada ↔ Randy Lee Scates (1 patent)Marco Antonio Calzada ↔ Guy Lamont Mcclung (1 patent)Marco Antonio CalzadaMarco Antonio Calzada (1 patent)James Cavitt GarrettJames Cavitt Garrett (4 patents)Jeff A LambertJeff A Lambert (4 patents)Guy Lamonte MClung, IiiGuy Lamonte MClung, Iii (1 patent)James Simpson GrantJames Simpson Grant (1 patent)James Simspon GrantJames Simspon Grant (1 patent)Randy Lee ScatesRandy Lee Scates (1 patent)Guy Lamont McclungGuy Lamont Mcclung (41 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Varco I/p, Inc. (1 from 191 patents)

2. National Oilwell Varco, L.p. (572 patents)


1 patent:

1. 7505871 - Diagnosis and troubleshooting for above-ground well systems

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