Maschinenfabrik Hennecke GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 6119
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 4116
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 480
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 339
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
F17D PIPE-LINE SYSTEMS; PIPE-LINES 212
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 299
 
  
 
B26D CUTTING; DETAILS COMMON TO MACHINES FOR SEVERING, e.g. BY CUTTING, PERFORATING, PUNCHING, STAMPING-OUT 136
 
  
 
B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS 126
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5883143 Method and device for the production of foam using carbon dioxide dissolved under pressureJun 18, 98Mar 16, 99[C08G]
5844015 Process and device for continuous production of polyurethane block foamNov 26, 97Dec 01, 98[C08G]
5789457 Method and device for the production of foam using carbon dioxide dissolved under pressureDec 09, 96Aug 04, 98[C08G]
5637277 Process and device for producing foam casings with CFC-free polyurethane foamsAug 02, 94Jun 10, 97[C08F]
5593010 Process and device for supplying energy to workstations circulating on a chainDec 05, 95Jan 14, 97[H02G]
5476638 Process and device for the production of plastics from at least two free-flowing reactantsJun 15, 92Dec 19, 95[C08F, G05D, B01F]
5453249 Apparatus for producing a flowable reaction mixture from at least two flowable reaction componentsMar 29, 93Sep 26, 95[C08F, G05D, B01F, B67D]
5443797 Process and apparatus for the production of a flowable reaction mixture from at least two flowable reactive componentsJun 08, 92Aug 22, 95[C08F, B29D, B01F]
5388975 Apparatus for continuously manufacturing sandwich elementsJul 20, 93Feb 14, 95[B26D, B29C]
5346673 Device and process for the production of a reaction mixture from at least two flowable reaction componentsOct 27, 93Sep 13, 94[C08F, G05B, F17D, G05D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5833930 Apparatus for foam manufacturing using carbon dioxide dissolved under pressureExpiredFeb 06, 97Nov 10, 98[C08F]
5834527 Process for the manufacture of polyurethane foam moldingsExpiredJul 08, 96Nov 10, 98[C08J]
5788932 Apparatus for preparing flowable reaction mixtures from at least two flowable reactantsExpiredMar 04, 93Aug 04, 98[B67D]
5669559 Process for pulverising polyurethane, polyurea and/or polyurethane/polyurea materials in a roller millExpiredJan 24, 96Sep 23, 97[B02C]
5670179 Valve for closing cavities which are to be foam-filledExpiredFeb 16, 96Sep 23, 97[B29C]
5665286 Method for the continuous production of foam blocks or sheetsExpiredJun 21, 95Sep 09, 97[B29C]
5643970 Method and apparatus for foam manufacture using carbon dioxide dissolved under pressureExpiredDec 14, 95Jul 01, 97[C08J, C08G]
5587182 Apparatus for the production of endless polyurethane moldingsExpiredFeb 15, 95Dec 24, 96[B29C, B01F]
5547276 Method and apparatus for continuously dispersing fine particle-sized solids in a liquidExpiredJun 29, 95Aug 20, 96[B01F]
5521224 Method and apparatus for controlling the number of cells in polyurethane foamExpiredMay 30, 95May 28, 96[C08J, C08F]
5451376 Process and apparatus for reprocessing polyurethane foam wastes, in particular flexible foam wastes, for recycling as additives in the production of polyurethaneExpiredMay 03, 94Sep 19, 95[B02C, C08F, B28B, B01J]
5415540 Apparatus for manufacturing molded plastic articles or for manufacturing hollow foamed articlesExpiredDec 09, 92May 16, 95[B29C]
5375988 Apparatus for continuous production of polyurethane block foamExpiredFeb 05, 93Dec 27, 94[B29C]
5330647 Filter device for separating coarse components from liquid componentsExpiredApr 14, 92Jul 19, 94[B01D]
5312596 Mixhead for mixing at least two free-flowing reaction componentsExpiredApr 20, 93May 17, 94[B01F]
5000882 Apparatus for the preparation of a free-flowing mixture of free-flowing components which reacts to form foamExpiredMay 13, 88Mar 19, 91[B01F]
4917502 Nozzle for the mixing of at least two flowable reaction components and process for operating such nozzleExpiredMar 01, 88Apr 17, 90[B29F, B01F]
4904451 Process and device for the preparation of flowable reaction mixturesExpiredAug 14, 89Feb 27, 90[B05B]
4895503 Device to produce molded plastic parts from a flowable reaction mixtureExpiredOct 18, 88Jan 23, 90[B29C]
4863010 Double belt conveyor for the continuous production of laminates having a foam core foamed in situ between covering layersExpiredSep 28, 84Sep 05, 89[B65G]

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