WEATHERFORD INTERNATIONAL INC has a total of 17 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering, chemical engineering and measurement are BRANDSDAL VIGGO, DRILLING & SERVICE UK LTD and BLACKHAWK SPECIALTY TOOLS LLC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 3 | |
#3 | WIPO (World Intellectual Property Organization) | 2 | |
#4 | Australia | 1 | |
#5 | Brazil | 1 | |
#6 | Netherlands | 1 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Chemical engineering | |
#3 | Measurement | |
#4 | Engines, pumps and turbines | |
#5 | Machines |
# | Technology | |
---|---|---|
#1 | Earth drilling | |
#2 | Separating solids | |
#3 | Unspecified technologies | |
#4 | Testing of structures | |
#5 | Non-positive-displacement pumps |
# | Name | Total Patents |
---|---|---|
#1 | Scott Matthew T | 5 |
#2 | Olsen Peter Martin | 3 |
#3 | Eeles John William | 3 |
#4 | Wilson Paul J | 3 |
#5 | Carisella James V | 3 |
#6 | Johnson Ronald Leslie | 2 |
#7 | Buytaert Jean P | 1 |
#8 | Jansch Manfred | 1 |
#9 | Wilkin James Frederick | 1 |
#10 | Tokar John W | 1 |
Publication | Filing date | Title |
---|---|---|
US2003127222A1 | Modular liner hanger | |
US6691776B2 | Downhole tool retention apparatus | |
US6202748B1 | Multi-stage maintenance device for subterranean well tool | |
US6213217B1 | Gas operated apparatus and method for maintaining relatively uniformed fluid pressure within an expandable well tool subjected to thermal variants | |
US6305477B1 | Apparatus and method for maintaining relatively uniform fluid pressure within an expandable well tool subjected to thermal variants | |
US6105675A | Downhole window milling apparatus and method for using the same | |
US6050340A | Downhole pump installation/removal system and method | |
US5960886A | Deep well pumping apparatus | |
NL9202234A | Device for the temporary sealing of drilling well piping |