WEATHERFORD US INC has a total of 125 patent applications. Its first patent ever was published in 1984. It filed its patents most often in United States, EPO (European Patent Office) and Canada. Its main competitors in its focus markets civil engineering, machines and machine tools are WASH OVERSHOT AND SPEAR ENGINE, CONDRA ELMO L and TELFER GEORGE.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 42 | |
#2 | EPO (European Patent Office) | 24 | |
#3 | Canada | 19 | |
#4 | Norway | 17 | |
#5 | WIPO (World Intellectual Property Organization) | 14 | |
#6 | Australia | 6 | |
#7 | United Kingdom | 3 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Machines | |
#3 | Machine tools | |
#4 | Engines, pumps and turbines | |
#5 | Mechanical elements | |
#6 | Measurement | |
#7 | Chemical engineering | |
#8 | Packaging and shipping |
# | Technology | |
---|---|---|
#1 | Earth drilling | |
#2 | Unspecified technologies | |
#3 | Spraying devices | |
#4 | Metal-working | |
#5 | Venting or aerating devices | |
#6 | Blasting | |
#7 | Pumps | |
#8 | Cranes | |
#9 | Cleaning | |
#10 | Measuring force, work and fluid pressure |
# | Name | Total Patents |
---|---|---|
#1 | Carter Thurman B | 21 |
#2 | Langer Friedrich H | 12 |
#3 | Schnitker Mark W | 11 |
#4 | Woodward Michael J | 9 |
#5 | Schneider David E | 9 |
#6 | Schulze-Beckinghausen Joerg Er | 8 |
#7 | Woodward Michael John | 6 |
#8 | Stringfellow William D | 5 |
#9 | Hassanzadeh Hedayat H | 5 |
#10 | Beagrie Karl J | 5 |
Publication | Filing date | Title |
---|---|---|
US5720349A | Starting mill and operations | |
US5642787A | Section milling | |
US5626189A | Wellbore milling tools and inserts | |
US5584350A | Wellbore sidetracking methods | |
US5577566A | Releasing tool | |
US5575333A | Centralizer | |
US5553667A | Cementing system | |
US5522461A | Mill valve | |
US5531271A | Whipstock side support | |
AU7787494A | Tool for measuring the twist in a tubular member | |
US5425417A | Wellbore tool setting system | |
US5429187A | Milling tool and operations | |
US5411049A | Valve | |
US5452759A | Whipstock system | |
US5368098A | Stage tool | |
WO9319283A1 | Anti-rotation devices for use in wellbores | |
CA2116780A1 | Test apparatus for pressure testing equipment having a flange and method of pressure testing | |
US5341873A | Method and apparatus for deviated drilling | |
US5113940A | Well apparatuses and anti-rotation device for well apparatuses | |
US5245877A | Tong load cell assembly |