| Patents for B41C 1 - Forme preparation (12,700) |
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| 04/01/1992 | EP0477442A1 A method for forming plate characters in a half-tone gravure platemaking process |
| 03/29/1992 | WO1992005957A1 Plasma-jet imaging apparatus and method |
| 03/29/1992 | CA2068716A1 Plasma-jet imaging apparatus and method |
| 03/25/1992 | EP0476965A2 Constant length laser device |
| 03/25/1992 | EP0476109A1 Electrographic gravure printing system |
| 03/19/1992 | CA2051225A1 Device for producing a constant length laser beam and method for producing it |
| 03/11/1992 | EP0473973A1 Process for the treatment of intaglio printing plates |
| 03/11/1992 | CN2098365U Plate-making machine using injected liquid photosensitive resin |
| 03/05/1992 | DE4027866A1 Prodn. of relief type artistic designs - involves coating strip of linoleum with photosensitive lacquer |
| 03/04/1992 | CN2097741U Illumination working table for mould plate making and repairing |
| 03/03/1992 | US5093180 Liquid transfer articles and method for producing them |
| 02/26/1992 | EP0472049A2 Method for engraving solid articles with laser beams and the articles produced |
| 02/20/1992 | WO1992002368A1 Printing member engraving |
| 02/18/1992 | US5089683 Device for producing a constant length laser beam and method for producing it |
| 02/11/1992 | CA1295506C Photocurable filling compound, in particular for closing the gap between the ends of gravure printing plates clamped on forme cylinders |
| 02/05/1992 | EP0469735A2 Device for forming flexographic printing plate |
| 02/05/1992 | EP0469724A1 Copper plating of gravure rolls |
| 01/29/1992 | EP0467904A1 High-speed electrocoagulation printing method and apparatus. |
| 01/22/1992 | EP0467663A2 Printer |
| 01/22/1992 | EP0467136A1 Photopolymerizable printing plate for flexographic printing |
| 01/20/1992 | CA2047302A1 Photopolymerizable printing plate for flexographic printing |
| 01/18/1992 | WO1992001567A1 Control system for spark-discharge recording head |
| 01/16/1992 | DE4021662A1 Printing machine print image formation system |
| 01/15/1992 | EP0466433A2 Apparatus for making a printing plate and a printing plate thereof |
| 01/15/1992 | EP0465727A1 Process for the production of linework and/or halftone pattern |
| 01/09/1992 | DE4020046A1 Screen for silk-screen printing - has straight longitudinal threads with transverse threads passing over and under them |
| 01/07/1992 | US5079401 Apparatus for machining a hollow cylinder to produce a pattern drum |
| 01/01/1992 | CN2091764U Dual-purpose plate-making machine for visiting card |
| 12/24/1991 | CA1293528C Thermodynamic printing method and means |
| 12/24/1991 | CA1293404C Printing plate processor having recirculating water wash reclamation |
| 12/17/1991 | US5072671 System and method to apply a printing image on a printing machine cylinder in accordance with electronically furnished image information |
| 12/12/1991 | WO1991019227A1 Light sensitive materials for lithographic plates |
| 12/05/1991 | DE4017164A1 Engraving of photogravure printing cylinders - involves machine which can handle cylinders with different line spacings |
| 12/04/1991 | CN1015010B Rapid and deep chemical etching on roller (rolling wheel) and steel mould |
| 11/28/1991 | WO1991016784A3 Printing cylinder engraving |
| 11/20/1991 | CN1056279A Technology for making metal plate with sulfuric paper |
| 11/13/1991 | EP0455804A1 Lithography plates and method and means for imaging them |
| 11/13/1991 | CN1014692B Production of artificial-silk chinese-painting paper |
| 11/12/1991 | US5063842 Screen tensioning and framing device and method therefor |
| 11/05/1991 | US5062364 Plasma-jet imaging method |
| 10/31/1991 | WO1991016784A2 Printing cylinder engraving |
| 10/31/1991 | WO1991016200A1 A rotogravure printing media and methods of manufacturing a rotogravure printing device employing the media |
| 10/30/1991 | CN1055704A Plant for manufacturing mold in forn of multi-impression plastic plate, in particular for reproducing intaglio printing plates, and method of actuating this plant |
| 10/27/1991 | CA2041201A1 Rotogravure printing media and methods of manufacturing a rotogravure printing device employing the media |
| 10/24/1991 | DE4012279A1 Printing blocks prodn. from aluminium - by oxidising block prior to working with laser beam to avoid vaporised metal deposits |
| 10/22/1991 | US5058499 Imparting an image on a substrate |
| 10/09/1991 | EP0450155A1 Humidification and inking method for a printing plate positioned on a plate cylinder |
| 10/05/1991 | WO1991015813A1 Electrographic gravure printing system |
| 10/05/1991 | CA2054711A1 Electrographic gravure printing system |
| 10/01/1991 | US5052292 Method and means for controlling overburn in spark-imaged lithography plates |
| 09/17/1991 | US5048416 Multi-color printing apparatus |
| 09/11/1991 | EP0445273A1 Method and means for controlling overburn in spark-imaged lithography plates |
| 09/11/1991 | EP0445207A1 Process and device for forming a resist pattern on a cylindrical object, and an etched metal cylinder obtained using such a resist pattern |
| 09/10/1991 | US5047116 Method for producing liquid transfer articles |
| 09/04/1991 | EP0445066A2 Method for preparing polychromatic printing plates |
| 09/03/1991 | US5045697 Directly image printing or form cylinder, and method of imaging |
| 09/03/1991 | US5045430 Microcapsules containing photohardening composition |
| 08/28/1991 | EP0443292A1 Device and method for the manufacture of a multiple plastic mould for the reproduction of intaglio printing plates |
| 08/20/1991 | CA2035400A1 Plant for manufacturing a mold in the form of a multi-impression plastic plate, in particular for reproducing intaglio printing plates, and method of actuating this plant |
| 08/20/1991 | CA1287772C Printing |
| 07/30/1991 | US5036403 Mode of operating of a circuit arrangement for improving the bounce behavior of print form engraving systems |
| 07/24/1991 | EP0437421A1 Mode of operation of a circuit arrangement for operating engraving systems for engraving printing formes. |
| 07/23/1991 | US5033377 Gravure printing plate |
| 07/17/1991 | EP0437318A1 Recording material |
| 07/16/1991 | US5032849 Method for transferring a viscous substance whose adhesiveness is reduced when a voltage is applied thereto by disposing the viscous substance between and applying a voltage to first and second electrodes |
| 07/03/1991 | EP0435058A2 Layer transfer process for image production and apparatus to perform the process |
| 07/02/1991 | US5029011 Engraving apparatus with oscillatory movement of tool support shaft monitored and controlled to reduce drift and vibration |
| 07/02/1991 | US5028475 Lighographic film material |
| 06/24/1991 | CA2032698A1 Layer transfer process for image production and apparatus to perform the process |
| 06/19/1991 | EP0432506A2 Thermal transfer foil for forming images directly onto a printing cylinder |
| 06/18/1991 | US5025266 Photosensitive and heat-sensitive polymers, process for producing the same and process for recording information using the same |
| 06/12/1991 | EP0431054A1 Lithography plates and method and means for imaging them |
| 05/29/1991 | WO1991008108A1 Lithography plates and method and means for imaging them |
| 05/28/1991 | US5019486 Method for forming plate characters in a half-tone gravure platemaking process |
| 05/22/1991 | EP0427749A1 Process for the production of a metal screen. |
| 05/15/1991 | EP0427004A2 Apparatus for processing a hollow cylinder with a laser |
| 05/14/1991 | US5015557 Silk screen process |
| 04/24/1991 | EP0423150A1 A scanner system for successive irradiation of a working surface, particularly for ultra-violet exposure of a photo emulsion on a serigraphic printing frame |
| 04/17/1991 | EP0252079B1 Device for fabricating a screener |
| 04/09/1991 | US5005479 Method and apparatus for imaging printing plates by spark discharge |
| 04/04/1991 | WO1991004153A1 Electro-photographically produced offset printing plate with hydrophilic tonered areas and oleophilic untonered areas |
| 04/02/1991 | US5003870 Antistretch screen printing arrangement |
| 03/22/1991 | WO1991004154A1 Method and means for controlling overburn in spark-imaged lithography plates |
| 03/22/1991 | CA2042033A1 Method and means for controlling overburn in spark-imaged lithography plates |
| 03/20/1991 | CN1012051B Zinc-plate printing plate and its prodn process |
| 03/14/1991 | DE3930584A1 Auf elektrophotographischem wege hergestellte offsetdruckplatte mit hydrophilen betonerten bereichen und oleophilen unbetonerten bereichen Produced by electrophotographic paths offset printing plate with hydrophilic and oleophilic areas tonered untoned areas |
| 03/12/1991 | US4999273 Presensitized plate |
| 03/05/1991 | US4998260 Method for correcting the path of a gas laser beam |
| 03/05/1991 | CA1280997C Process for the electrochemical roughening of aluminum for use inprinting plate supports |
| 02/06/1991 | EP0144315B1 Screen gravure engraving method for electromechanical engravers |
| 01/30/1991 | CN2070238U Photothermal form making machine |
| 01/29/1991 | CA1279603C Monochromic and polychromic printing of an image reproduced by electro-coagulation of a colloid |
| 01/24/1991 | WO1991000806A1 Preparing printing screens |
| 01/23/1991 | EP0409570A2 Method of supplying viscous substance |
| 01/22/1991 | US4987287 Method of making a stencil for etching glass |
| 01/15/1991 | US4985322 Process and apparatus for producing printing plates |
| 01/09/1991 | CN1011133B Continuous squaring screw circulation form |
| 01/01/1991 | US4981076 Centralizing device for preparing a silk screen for a silk screen printing machine |
| 12/19/1990 | CN2067643U Intelligent image-copying plate-making machine |
| 12/06/1990 | DE3917774A1 Laser engraving machine for colour printing rolls - has two working areas over which laser optic head can move |