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HYDRIL CO LP

Overview
  • Total Patents
    55
About

HYDRIL CO LP has a total of 55 patent applications. Its first patent ever was published in 2000. It filed its patents most often in WIPO (World Intellectual Property Organization), United States and China. Its main competitors in its focus markets civil engineering, machines and mechanical elements are FSSL LTD, GANDY TECHNOLOGIES CORP and ULTRA PREMIUM SERVICES L L C.

Patent filings per year

Chart showing HYDRIL CO LPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Reynolds Harris A Jr 14
#2 Sivley Robert S Iv 9
#3 Berckenhoff Michael Wayne 7
#4 Khandoker Shafiq 5
#5 Reynolds Jr Harris A 5
#6 Ward Gary W 4
#7 Judge Robert Arnold 3
#8 Carbaugh William L 3
#9 Gass Dustin Dean 3
#10 Mallis David Llewellyn 3

Latest patents

Publication Filing date Title
CN101517193A Method of designing blowout preventer seal using finite element analysis
US2008023917A1 Seal for blowout preventer with selective debonding
US2007007483A1 Double-stop floating ball valve
AU2005332690A1 Rod lock for ram blowout preventers
CN101238269A Rod lock for ram blowout preventer
US2005263291A1 BOP conversion apparatus
US2006145476A1 Pseudo two-step connection
US2006108803A1 Electrical contractors embedded in threaded connections
US2006090899A1 Ram BOP shear device
US6976711B2 Threaded connection especially for radially plastically expandable conduit