IRI INTERNATIONAL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 289
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 144

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5682743 Hydraulic fluid-conducting circuit containing flow-through cylindersMar 05, 96Nov 04, 97[F15B, F16D]
5601163 Automatic adjuster for brake calipersMar 05, 96Feb 11, 97[F16D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5289845 Oilfield tubing reel and reel assemblyExpiredNov 12, 92Mar 01, 94[A62C]
4890681 Method and apparatus for rotary power driven swivel drillingExpiredApr 05, 89Jan 02, 90[E21B]
4836064 Jaws for power tongs and back-up unitsExpiredJul 16, 87Jun 06, 89[B25B]
4832552 Method and apparatus for rotary power driven swivel drillingExpiredAug 18, 86May 23, 89[E21B]
4683994 Shifting apparatus for a drawworks transmissionExpiredApr 12, 85Aug 04, 87[F16D]
4648447 Casing scraperExpiredSep 11, 85Mar 10, 87[E21B]
4558842 Connector for joining blowout preventer membersExpiredApr 04, 85Dec 17, 85[E21B]
4453625 Concentric shaft driveExpiredOct 07, 81Jun 12, 84[F16D]
4440262 Delayed deployment platformExpiredFeb 22, 83Apr 03, 84[B66C]
4439167 Shock absorber assemblyExpiredMar 01, 82Mar 27, 84[E21B]
4388651 Method and apparatus for generating a scanned optical output signalExpiredMay 28, 81Jun 14, 83[H04N]
4369977 Seal for an overshot and a method of doing sameExpiredDec 01, 80Jan 25, 83[F16J]
4332062 Bowl structureExpiredFeb 19, 80Jun 01, 82[F16I]
4331006 Shock absorber assemblyExpiredJul 01, 80May 25, 82[F16D, E21B]
4305311 Crankshaft constructionExpiredMay 22, 78Dec 15, 81[F16C]
4203266 Mast leveling and support apparatusExpiredDec 15, 77May 20, 80[E04H]
4187059 Valve guide for poppet valveExpiredMar 16, 78Feb 05, 80[F04B]
4184814 Valve guide for poppet valveExpiredMar 23, 78Jan 22, 80[F04B]

Top Inventors for This Owner

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