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GRANT PRIDECO INC

Overview
  • Total Patents
    54
About

GRANT PRIDECO INC has a total of 54 patent applications. Its first patent ever was published in 1994. It filed its patents most often in WIPO (World Intellectual Property Organization), United States and Australia. Its main competitors in its focus markets civil engineering, mechanical elements and machines are VERDERG CONNECTORS LTD, VAM USA LLC and MAJUS LTD.

Patent filings per year

Chart showing GRANT PRIDECO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Delange Richard W 14
#2 Wilson Gerald E 13
#3 Delange Richard 7
#4 Evans Ed 7
#5 Smith Jackie E 7
#6 Buster Jerry L 7
#7 Evans M Edward 6
#8 Winship Thomas E 6
#9 Tang Wei 5
#10 Wyatt Mark L 5

Latest patents

Publication Filing date Title
EP1590515A2 Fast make-up fatigue resistant rotary shouldered connection
AU2003226167A1 Replaceable corrosion resistant tool joint seal
US6848724B2 Thread design for uniform distribution of makeup forces
AU5467200A Sliding sleeve assembly for subsurface flow control
WO0066929A1 Rotationally locked tool joint for connecting drill pipe sections together
BR0010192A Threaded connection with high compression capacity
WO0060266A1 Drill pipe assembly
US6409175B1 Expandable joint connector
US6044908A Sliding sleeve valve and seal ring for use therein
US6012744A Heavy weight drill pipe
US6042153A Threaded connection for internally clad pipe
US5908212A Ultra high torque double shoulder tool joint
US5931511A Threaded connection for enhanced fatigue resistance
US5853199A Fatigue resistant drill pipe
US5535837A Helical stress relief groove apparatus and method for subterranean well drill pipe assemblies