Patents
Patents for B41M 3 - Printing processes to produce particular kinds of printed work, e.g. patterns (11,751)
01/1992
01/21/1992US5082703 Thick ink ridge
01/10/1992WO1992000852A1 Transfer printing process
01/07/1992US5078428 Copy-proof sheet
12/1991
12/26/1991WO1991019614A1 Security of objects or documents
12/26/1991WO1991019610A1 Method of manufacturing bright decorative sheet
12/24/1991US5074597 Computerized method of generating film masters for embossing and printing color images
12/24/1991US5074596 Currency paper, especially bank note, with a safety design and process for producing it
12/24/1991US5074206 Halftone dots solid color
12/21/1991WO1991019955A1 Method for producing an image on a substrate having the same spectral content with front and back illumination
12/18/1991EP0461475A1 Method for transferring a pattern onto a substrate and use of a film
12/17/1991CA1293152C Variable color print and method of making same
12/11/1991EP0460270A1 Color changing print
11/1991
11/27/1991EP0470131A4 Secure image production.
11/27/1991EP0458631A2 Signs with transparent substrate
11/14/1991WO1991017054A1 Method, device and substance for forming picture
11/14/1991WO1991017053A1 Process and device for applying colour decoration to a plastic substrate and decorated plastic substrate
11/13/1991EP0455849A1 Method and apparatus for transfer of a colour design to a plastic substrate or a decorated plastic substrate
11/13/1991EP0455750A1 Nonreplicable document and method for making same
11/12/1991US5064221 Method for distinguishing printed originals from copies
11/06/1991CN2088034U Heat colour-changing trade mark
10/1991
10/29/1991US5060981 Transparent overlay for protecting a document from tampering
10/23/1991EP0452566A1 Method for making transparent thermal dye transfer images
10/22/1991US5059245 Ink incorporating optically variable thin film flakes
10/22/1991US5058925 Leach resistant ink for protecting documents from alteration and document protected thereby
10/16/1991CN1055404A Production of heat sensitizing transfer printing paper and its transferring method
10/15/1991US5056880 Holographic wallpaper
10/08/1991US5055323 Applying curable base coat by rotogravure printing, printing colored design with high binder inks
10/03/1991WO1991015805A1 A switchon-switchoff, multistate, interactive, antiphotocopying, antifraud and antifaxing system
10/03/1991WO1991014571A1 Marker device with permanent indicia
10/02/1991EP0449012A1 Decorative sheets and processes for producing them
10/01/1991US5053788 Method and apparatus for thermal printing suitable for large printing area
09/1991
09/25/1991EP0447533A1 Treatment of hot melt ink images.
09/25/1991CN1054808A Anti-imitation paper and manufacturing method thereof
09/18/1991EP0446846A2 Thermally-transferable fluorescent europium complexes
09/18/1991EP0446834A1 Receiver for thermally-transferable fluorescent europium complexes
09/14/1991CA2037154A1 Receiver for thermally-transferable fluorescent europium complexes
09/14/1991CA2036191A1 Thermally-transferable fluorescent europium complexes
09/04/1991EP0444087A1 Imaging plastics articles.
09/03/1991US5046166 Digital electrophotographic copying apparatus
08/1991
08/27/1991US5043188 Image-impressing device overlaps inwardly tapered ends to enhance illusion of continuity; constant width; straight edges
08/22/1991WO1991012139A1 Imaging process
08/21/1991EP0441935A1 Self-adhesive dry-transfer decal, process for its manufacture and method of use.
08/14/1991CN1053769A Non-photographic method for patterning organic polymer films
08/10/1991WO1991012372A1 Sheet for protected documents having high printability and high handling resistance
08/07/1991EP0440554A1 Document authenticable by an authentication composition and process to realize said authentication
08/06/1991US5037682 Light reflectivity
08/06/1991US5037504 Transferring the image
08/06/1991US5037447 Thermally transferring an image of heat-fusible ink containing a hydroxyl-containing substance and treating with a crosslinking polycyanate
08/03/1991WO1991011492A1 Ink composition and components thereof
08/03/1991WO1991011331A1 Anti-photographic/photocopy imaging process and product made by same
08/03/1991CA2075063A1 Anti-photographic/photocopy imaging process and product made by same
08/03/1991CA2075055A1 Ink composition and components thereof
07/1991
07/31/1991EP0438819A1 Photochromatic compound, a method for its preparation, and articles which contain it
07/25/1991WO1991010571A1 Imaging process
07/24/1991EP0437720A1 Method of transferring decoration from an embossing to a flat surface, and device for carrying out the method
07/23/1991US5033773 Security for images formed by impact based systems
07/16/1991US5032216 Non-photographic method for patterning organic polymer films
07/16/1991US5032003 Optially variable surface pattern
07/03/1991EP0435675A2 Phase change ink printed substrate and method of production thereof
06/1991
06/26/1991CN2079561U Manifolding bill capable of distinguishing true from false
06/19/1991EP0432698A1 Jigsaw puzzle
06/12/1991EP0432093A1 Highly reactive printing inks
06/12/1991EP0431940A2 Improvements in and relating to the generation of sales records
06/11/1991US5023111 Maintaining ink pattern at abobe melting temperature for a short time to spread, quenching; wrinkle resistance
06/05/1991EP0429782A1 Arrangement for improving the falsification safety of a document of value
06/04/1991US5021112 Process of multicolor printing by laser
05/1991
05/29/1991EP0428933A2 Materials coated with plate like pigmets
05/29/1991EP0428828A2 Process for the detection of copies
05/28/1991US5018767 Counterfeit protected document
05/22/1991EP0427847A1 Security paper for producing documents
05/21/1991US5017417 Excellent heat resistance, dimensional stability, formability,
05/21/1991US5017226 Ink and method for the development of concealed images
05/16/1991DE3937418A1 Finely structured plastic film recess printing plate prodn. - used for transfer printing matrix onto flat display panel
05/02/1991WO1991005833A1 Fluorescent compounds and marking method using such compounds
05/02/1991EP0425467A2 Process for creating magnetic impressions on sheetlike material
04/1991
04/30/1991US5011816 Ligands reacting with complex to form higher coordinate complex in situ; emitting red hue with ultraviolet radiation; security badges
04/21/1991WO1991006118A1 Non-photographic method for patterning organic polymer films
04/21/1991CA2069306A1 Non-photographic method for patterning organic polymer films
04/18/1991WO1991004799A1 Treatment of hot melt ink images
04/17/1991CN2075135U Improved mechanism for synchronism punching hole and forming of printer
04/11/1991CA2282910A1 Money order imprinter
04/09/1991US5006503 Thermally-transferable fluorescent europium complexes
04/09/1991CA1282637C Rotary multicolor indirect printing machine for simultaneously recto-verso printing
04/02/1991US5003915 Apparatus for printing and for forming a hologram on sheet material
03/1991
03/27/1991EP0419389A1 Device for printing and drying, particularly paper, corresponding ink and method for manufacturing the ink
03/27/1991EP0419241A2 Transparent overlay for protecting a document from tampering
03/21/1991WO1991003382A1 Heat transfer decorations with patterned metallization
03/19/1991US5000090 Method for the continuous printing of a planar structure
03/19/1991US5000089 Picture forming method, picture thereof and picture forming material
03/12/1991US4998962 Printing method and printed product
03/01/1991WO1991003381A1 Self-adhesive dry-transfer images, process for their manufacture and method of use
03/01/1991CA2042364A1 Self-adhesive dry-transfer images, process for their manufacture and method of use
02/1991
02/27/1991EP0414015A2 Tissue web, method for preparing and use of same
02/26/1991US4996537 Method of and apparatus for recording image
02/26/1991US4996184 Sheet material for use in a method for non-impact printing, photocopying and like reprographic processes
02/26/1991US4995927 Process for and product related to fabricating linked duplex film with trapped printing
02/12/1991US4992347 Marking
02/12/1991US4992304 Patterning, reorientation
02/06/1991EP0411602A2 Object having visible pattern including invisible information printed thereon
02/05/1991CA1279794C Printing