VOITH SULZER PAPIERTECHNIK PATENT GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
D21F PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON821
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES376
 
  
 
B05C APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 243
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
  
 
D21G CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES 211
 
  
 
D21H PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 236
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 134
 
  
 
B04C APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES 112
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 163
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7332059 Method for the manufacture of a fiber material webApr 26, 04Feb 19, 08[D21F]
7288168 Machine and method for the manufacture of a fiber material webDec 23, 03Oct 30, 07[D21F]
6746574 Machine and method for the manufacture of a fiber material webFeb 14, 02Jun 08, 04[D21F]
6577916 Method of carrying out an optimized fiber or paper manufacturing processMar 10, 00Jun 10, 03[G05B, G06F, D21F]
6498646 Apparatus and process for determining the properties of a material webMar 24, 00Dec 24, 02[G01N]
6444090 Process and device for spraying a moving fibrous webSep 28, 00Sep 03, 02[B05B]
6416630 Press jacket and method for treating a material webApr 26, 99Jul 09, 02[B65G, D21F, B32B]
6406414 Press jacket and processes for its manufactureDec 14, 99Jun 18, 02[F16C, B25F]
6364959 Process for cleaning a transport beltMay 13, 99Apr 02, 02[B08B]
6332587 Process for threading material web onto reel and device for processOct 21, 99Dec 25, 01[B65H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7497399 Process and winding machine for winding a material webExpiredDec 02, 02Mar 03, 09[B65H]
7005045 Belt for machines for producing material webs and process of producing the beltExpiredJan 13, 00Feb 28, 06[D21F]
6942761 Press device and method of using the sameExpiredJan 12, 99Sep 13, 05[D21F]
6916405 Process and device for drying of a material webExpiredSep 30, 02Jul 12, 05[D21J, D21F]
6896647 Elastic roller and process for producing sameExpiredJun 02, 00May 24, 05[F16C]
6890408 Headbox for the metered addition of a fluid medium into a suspension streamExpiredAug 23, 02May 10, 05[D21F]
6854385 Elastic roll for smoothing paper websExpiredJun 22, 00Feb 15, 05[B30B]
2004/0191,416 Coating device and process for a wet section of an apparatus for production of a material webAbandonedMar 29, 04Sep 30, 04[B05D]
6749146 Process and apparatus for threading a material web onto a reelExpiredMar 23, 00Jun 15, 04[B65H]
6743337 Process and apparatus for determining the properties of a traveling material webExpiredMar 20, 00Jun 01, 04[G01N, D21F]
2004/0089,168 Semipermeable membrane with intercommunicating pores for pressing apparatusAbandonedNov 04, 03May 13, 04[B30B]
6717675 System and method for determining fiber orientation in fibrous material websExpiredMar 24, 00Apr 06, 04[G01N]
6705554 Rotor for a paper stock processing machine, anti-wear element for such a rotor, and paper stock processing apparatusExpiredMay 25, 00Mar 16, 04[B02B, B02C]
6705562 Roll winding device and method of increasing rigidity of such deviceExpiredApr 20, 99Mar 16, 04[B65H]
6701833 CalenderExpiredSep 14, 00Mar 09, 04[B30B]
6694640 Calender humidity control system and methodExpiredFeb 04, 00Feb 24, 04[F26B]
6675494 System for drying a web and processExpiredDec 01, 99Jan 13, 04[F26B]
6668711 Elastic roller, method for producing same device for smoothing paper and method for smoothing paperExpiredJun 02, 00Dec 30, 03[B30B]
6645420 Method of forming a semipermeable membrane with intercommunicating pores for a pressing apparatusExpiredSep 30, 99Nov 11, 03[B05D]
6641017 Process and device for laterally positioning a material webExpiredMar 11, 02Nov 04, 03[B65G, B65H]

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