Growing community of inventors

Chicago, IL, United States of America

Lev Spevak

Average Co-Inventor Count = 3.00

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 = 30

Lev SpevakDonald E Lorenzi (1 patent)Lev SpevakHelmut F Wagerer (1 patent)Lev SpevakLev Spevak (1 patent)Donald E LorenziDonald E Lorenzi (12 patents)Helmut F WagererHelmut F Wagerer (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Magnaflux Pipeline Services, Inc. (1 from 2 patents)


1 patent:

1. 4641529 - Pipeline inspection device using ultrasonic apparatus for corrosion pit

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