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FERROFLUIDICS CORP

Overview
  • Total Patents
    229
About

FERROFLUIDICS CORP has a total of 229 patent applications. Its first patent ever was published in 1970. It filed its patents most often in United States, Japan and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, machines and audio-visual technology are WEST & SON ENGINEERS LTD, INPRO CO INC and NAT OIL SEAL CO.

Patent filings per year

Chart showing FERROFLUIDICS CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Raj Kuldip 105
#2 Moskowitz Ronald 30
#3 Gowda Hanumaiah L 22
#4 Kurudeipu Raji 21
#5 Casciari Raoul 17
#6 Stahl Philip 15
#7 Borduz Lucian 9
#8 Fuller Dudley D 9
#9 Black Jr Thomas J 8
#10 Aziz Lutful M 8

Latest patents

Publication Filing date Title
US6290894B1 Ferrofluid sculpting apparatus
US6242994B1 Apparatus to reduce push back time in solenoid valves
US6103107A System for recycling ferrofluid constituents used in a materials separation process
JPH10241928A Inexpensive manufacture of magnetic fluid
EP0880149A1 Method for manufacturing ferrofluid
US6068785A Method for manufacturing oil-based ferrofluid
US5908987A Sensor employing a sliding ferrofluid mass in a coated, non-wetting, housing
US5824149A Method and apparatus for controlling crystal temperature gradients in crystal growing systems
US5851416A Stable polysiloxane ferrofluid compositions and method of making same
US5780741A Sensor employing a sliding magnet suspended on ferrofluid
US5879452A Czochralski crystal growth system with an independently supported pull head
US5806856A On-site fillable liquid magnetic seal
US5969589A Quiet ferrofluid solenoid
US5797990A Apparatus for damping a crystal ingot suspension in a Czochralski crystal puller
US5594241A Apparatus and method for jitter attenuation in rotary encoders
US5636547A Liquid level monitoring system having ferrofluid pressure sensor
US5461677A Loudspeaker
US5452520A Ferrofluid inclinometer
US5490425A Ferrofluid pressure sensor and warning device
US5429000A Ferrofluid pressure sensor