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TRI STATE OIL TOOLS INC

Overview
  • Total Patents
    70
About

TRI STATE OIL TOOLS INC has a total of 70 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United States, EPO (European Patent Office) and Australia. Its main competitors in its focus markets civil engineering, machine tools and machines are BOART LONGYEAR INT HOLDING INC, ROSE JAMES A and JOHNSTON MORDICA O.

Patent filings in countries

World map showing TRI STATE OIL TOOLS INCs patent filings in countries

Patent filings per year

Chart showing TRI STATE OIL TOOLS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lynde Gerald D 28
#2 Johnson Gary R 10
#3 Harvey Jr Harold H 10
#4 Harvey Harold H Jr 8
#5 Price James M 5
#6 Winterrowd Kenneth W 4
#7 Richardson Charles N 4
#8 Foster Benjamin E 4
#9 Murray Kenneth Alexander 4
#10 Winterrowd Kenneth Walter 3

Latest patents

Publication Filing date Title
US5234056A Sonic method and apparatus for freeing a stuck drill string
EP0353962A2 Casing cutters
US5038859A Cutting tool for removing man-made members from well bore
US4978260A Cutting tool for removing materials from well bore
US5014778A Milling tool for cutting well casing
US4776394A Hydraulic stabilizer for bore hole tool
EP0234697A2 Cutter
US4887668A Cutting tool for cutting well casing
EP0213798A2 Packer retrieval assembly
US4796709A Milling tool for cutting well casing
US4576402A Locking pipe sub
US4354560A Apparatus for drilling enlarged boreholes
US4382623A Apparatus for retrieving fluid plug
US4374543A Apparatus for well treating
US4390065A Apparatus for well treating
US4314608A Method and apparatus for well treating
US4354559A Enlarged borehole drilling method and apparatus
CA1099700A Method for producing chambered blast holes
US4276931A Junk basket
US4187920A Enlarged bore hole drilling method and apparatus