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ER FLUID DEV

Overview
  • Total Patents
    35
About

ER FLUID DEV has a total of 35 patent applications. Its first patent ever was published in 1984. It filed its patents most often in United Kingdom, EPO (European Patent Office) and United States. Its main competitors in its focus markets mechanical elements, machines and basic materials chemistry are LOCHNER KASPAR, WEFCO INC and LIAONING HAIHUA TECH CO LTD.

Patent filings per year

Chart showing ER FLUID DEVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stangroom James Edward 13
#2 Stangroom James E 5
#3 Walton Rex 3
#4 Kermode Peter Richard 3

Latest patents

Publication Filing date Title
GB9613239D0 Improvements in or relating to high speed actuators and vibrators based on electro-rheological fluids
GB9613150D0 Improvements in or relating to acoustic transducers
GB9611203D0 Improvements in, or relating to, ER fluid
GB9512666D0 Improvements in or relating to, electro-rheological fluids
US5356269A Variable displacement pump
GB9019401D0 Winding materials on spools,bobbins or rolls
GB8918004D0 A retractable and extensible device controlled by er fluid
GB8918005D0 A flow control device operated by er fluids
GB8913343D0 Variable displacement pump
GB8825910D0 Tension measuring method & device
GB8808370D0 Support for diving weights
GB8725929D0 Tension measuring method
GB8706928D0 Electric field responsive fluids
GB8626505D0 Tension measuring
GB8527339D0 Tension measuring method
GB8501388D0 Pipework snubber
GB8428628D0 Tension measuring
GB8423691D0 Servo-operated torque controlling devices