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SPECIALISED PETROLEUM SERV LTD

Overview
  • Total Patents
    287
  • GoodIP Patent Rank
    241,839
About

SPECIALISED PETROLEUM SERV LTD has a total of 287 patent applications. Its first patent ever was published in 1992. It filed its patents most often in United Kingdom, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering, machines and chemical engineering are DRENTH CHRISTOPHER L, PETROLEUM TECHNOLOGY COMPANY A and TELFER GEORGE.

Patent filings per year

Chart showing SPECIALISED PETROLEUM SERV LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Telfer George 135
#2 Howlett Paul David 47
#3 Carmichael Mark 39
#4 Scott Edward Docherty 18
#5 Howlett Paul 13
#6 Atkins James Edward 10
#7 Atkins James 5
#8 Martin Andrew 5
#9 Williams Glynn 5
#10 Linklater James 5

Latest patents

Publication Filing date Title
MX2011004122A Work string mounted cleaning tool and assembly method.
GB0906522D0 Downhole tool valve and method of use
GB0903090D0 "Diverter cup assembly"
GB0819671D0 Work string mounted cleaning tool and assembly method
GB0819282D0 Downhole tool with high pressure operating capability
GB0814456D0 Drill string mounted rotatable tool and cleaning method
GB0812955D0 Improved downhole tool
BRPI0807944A2 Valve seat assembly, well background tool and methods
GB0709953D0 Downhole flow control tool and method
GB0706350D0 Ball seat assembly and method of controlling fluid flow through a hollow body
GB0620672D0 Cement evaluation method and tool
GB0722153D0 Device and method for retrieving debris from a well
GB0607455D0 Improved Downhole Tool
GB0606335D0 Wellbore cleaning
GB0513645D0 Wellbore cleaning method and apparatus
GB0509962D0 Device and method for retrieving debris from a well
GB0509715D0 Wellbore cleaning tool and method
BRPI0414239A method and apparatus for removing oil from oil contaminated material
GB0418796D0 Clamp
GB0411749D0 Downhole tool