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LUFKIN IND INC

Overview
  • Total Patents
    47
  • GoodIP Patent Rank
    210,294
About

LUFKIN IND INC has a total of 47 patent applications. Its first patent ever was published in 1972. It filed its patents most often in United States, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets engines, pumps and turbines, civil engineering and machines are DRESSER EQUIPMENT COMPANY, J F DARBY and NEILSEN KARL P.

Patent filings per year

Chart showing LUFKIN IND INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dorado Doneil M 10
#2 Beckman Kenneth O 9
#3 Nolen Kenneth B 7
#4 Boyer Lemoyne 7
#5 Gibbs Sam G 7
#6 Oestreich Eric S 6
#7 Franks Scott A 5
#8 Nelson Arthur L 5
#9 Dorado Doneil 5
#10 Jinkins David L 5

Latest patents

Publication Filing date Title
US2015323000A1 Five-axial groove cylindrical journal bearing with pressure dams for bi-directional rotation
US2014332227A1 Gas-lift valve and method of use
US2014196907A1 Hydraulic oil well pumping apparatus
US2014188292A1 Methods, Systems, and Computer Readable Media for Sectional-Based Speed Control of a Linear Pump
CN104136778A Low profile rod pumping unit with pneumatic counterbalance for the active control of the rod string
CN103459867A Bridge spring centering device for squeeze film dampers
WO2012021506A1 Beam pumping unit for inclined wellhead
US2010111716A1 Apparatus for analysis and control of a reciprocating pump system by determination of a pump card
WO2008124765A1 Real-time onsite internet communication with well manager for constant well optimization
US2009129942A1 System and method for controlling a progressing cavity well pump
US2006067834A1 Method for mitigating rod float in rod pumped wells
US2006149476A1 Inferred production rates of a rod pumped well from surface and pump card information
US2005103556A1 Method and apparatus for applying dynamic loads to a locked gear train for testing power transmission components
EP1552191A1 Herringbone gear teeth and method for manufacturing same
US6857474B2 Methods, apparatus and products useful in the operation of a sucker rod pump during the production of hydrocarbons
US6015271A Stowable walking beam pumping unit
US5052713A Vehicle suspension safety system
US3771609A Apparatus for servicing and operating a reciprocal well pump or the like