Firma Carl Freudenberg

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS1733
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM11146
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 9116
 
  
 
D04H MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL 724
 
  
 
A47L DOMESTIC WASHING OR CLEANING 555
 
  
 
B01D SEPARATION 4130
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 479
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 367
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION356
 
  
 
B03C MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 219

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D764129 Floor cleanerOct 24, 14Aug 16, 16[0401]
8468633 Floor-cleaning equipmentAug 05, 08Jun 25, 13[A47L]
7191813 Method and device for producing a spunbonded nonwoven fabricDec 17, 04Mar 20, 07[B32B]
6845985 Rotating mechanical sealNov 08, 01Jan 25, 05[F16J]
6779798 Sealing arrangementJan 12, 01Aug 24, 04[F16J]
6715768 Sealing ring having a sealing beadFeb 04, 00Apr 06, 04[F16J]
6709732 Web-type floor covering and method for its manufactureApr 04, 00Mar 23, 04[B32B]
6706652 Cleaning clothJan 12, 01Mar 16, 04[D04H]
6682683 Method for manufacturing an accordion filter insertNov 22, 96Jan 27, 04[B29C]
6666459 Radial shaft sealApr 06, 00Dec 23, 03[F16J]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0301,308 Filter Arrangement for Fuel CellAbandonedJun 22, 06Dec 10, 09[H01M, B01D]
7086114 Wet floor wiping deviceExpiredNov 21, 01Aug 08, 06[A47L]
7056271 Folded-three-dimensional object, particularly a filter elementExpiredOct 05, 01Jun 06, 06[B31B]
6941612 Mop wringerExpiredMay 27, 99Sep 13, 05[A47L]
6939598 Floor covering made of an elastomer material having a relief-type patterned surfaceExpiredAug 03, 01Sep 06, 05[0000]
6887331 Method and device for producing a spunbonded nonwoven fabricExpiredJul 24, 01May 03, 05[D04H, B32B]
6823557 Wringing device for cleaning elements of wet and moist mopsExpiredSep 21, 01Nov 30, 04[A47L]
6777065 Fixing liner with double layer adhesive dotsExpiredJun 08, 01Aug 17, 04[B32B]
6772468 Floor-mopping deviceExpiredMay 07, 99Aug 10, 04[A47L]
6763574 Processing deviceExpiredApr 07, 00Jul 20, 04[H01R]
6723416 Flat nonwoven fiber aggregate with three-dimensional structure and method for its productionExpiredAug 22, 01Apr 20, 04[B32B]
6702681 Torsionally flexible couplingExpiredSep 30, 02Mar 09, 04[F16N, F16D, F16F, F16H]
6695999 Method of making an electrically conductive floor coveringExpiredJan 17, 02Feb 24, 04[B29C, B29B]
6688413 Bearing system for a first vehicle part, in particular designed as a driver's cab of a truck, on a second vehicle part, in particular designed as a vehicle frameExpiredApr 10, 01Feb 10, 04[B62D]
6666311 Spring strut support bearingExpiredJul 28, 00Dec 23, 03[F16F]
6663090 Hydraulic engine mountExpiredMay 25, 01Dec 16, 03[F16F]
6663091 Hydraulic bearingExpiredDec 18, 01Dec 16, 03[F16F]
6655667 Hydraulic damper bearingExpiredMay 26, 00Dec 02, 03[F16F]
6655694 Slide ring sealExpiredMar 31, 00Dec 02, 03[F16J]
6647600 Hook and loop fastener for flat materialsExpiredJul 25, 01Nov 18, 03[A44B, B32B]

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