MPB CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 1357
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS545
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B21H MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS 17
 
  
 
B60C VEHICLE TYRES 149
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
F16H GEARING199
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 1104

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6058767 Measurement of wheel bearing end playFeb 27, 98May 09, 00[G01M]
6050570 Seal with bi-modulus lipJan 30, 98Apr 18, 00[F16J]
5975762 Tapered roller bearing with true rolling contactsOct 14, 97Nov 02, 99[F16C]
5882123 Roll-formed bearing race and process for producing the sameJun 03, 97Mar 16, 99[F16C, B21H, B21D]
5879480 Process for imparting residual compressive stresses to steel machine componentsJul 25, 97Mar 09, 99[C21D]
5851313 Case-hardened stainless steel bearing component and process and manufacturing the sameSep 18, 96Dec 22, 98[C23C]
5816711 Package bearing with retainerSep 26, 97Oct 06, 98[F16C]
5813675 Multibarrier sealOct 15, 96Sep 29, 98[F16J]
5722664 Seal with pumping capabilitiesSep 25, 96Mar 03, 98[F16J]
5711616 Bearing seal for providing static and dynamic barriersApr 09, 96Jan 27, 98[F16C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5943195 Magnetic head apparatus and magnetic recording apparatus using thereofExpiredMar 27, 97Aug 24, 99[G11B]
5861067 Steel machine component having refined surface microstructure and process for forming the sameExpiredAug 08, 95Jan 19, 99[C21D, C22C]
5755323 Package and kit for and method of selecting a replacement bearingExpiredApr 09, 96May 26, 98[B65D]
5735612 Single row tapered roller bearingExpiredMar 12, 97Apr 07, 98[F16C]
5662445 Locking nutExpiredMar 06, 96Sep 02, 97[F16B]
5648611 Process for measuring the case depth of case-carburized steelExpiredAug 28, 95Jul 15, 97[G01N]
5595272 Unidirectional clutchExpiredApr 25, 95Jan 21, 97[F16D]
5503481 Bearing surfaces with isotropic finishExpiredDec 09, 93Apr 02, 96[F16C]
5488871 Bearing adjustment using compressive force sensorExpiredFeb 16, 94Feb 06, 96[G01L]
5478523 Graphitic steel compositionsExpiredJan 24, 94Dec 26, 95[C21D, C22C]
5470157 Bearing seal for sensing angular velocityExpiredMar 29, 94Nov 28, 95[F16C, G01P]
5399026 Bearing with lubricating ring for providing supplemental lubricationExpiredDec 21, 92Mar 21, 95[F16C]
5309639 Method of making a machine component with lubricated wear surfaceExpiredNov 23, 92May 10, 94[B23P, F16C, B22F]
5129744 Two component bearing seal with bumpersExpiredJun 17, 91Jul 14, 92[F16C]
5121998 Bearing assembly capable of monitoring angular velocityExpiredApr 01, 91Jun 16, 92[F16C]
5052824 Compliant spherical bearingExpiredJan 09, 91Oct 01, 91[F16C]
5028152 Machine with thermally compensated bearingsExpiredMar 21, 90Jul 02, 91[F16C]
5022659 Seal assembly for antifriction bearingsExpiredDec 22, 89Jun 11, 91[F16J]
5017025 Bearing assembly for a shaft journalExpiredApr 05, 90May 21, 91[F16C]
5009523 Double row bearing assemblyExpiredJul 20, 89Apr 23, 91[F16C]

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