Nocopi Technologies, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B41M PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING 346
 
  
 
B42D BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH; MOVABLE-STRIP WRITING OR READING APPARATUS 330
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 290
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8822374 Color-changing marking implement and substrateJan 06, 12Sep 02, 14[B41M]
8053494 Invisible ink and scratch padJan 10, 08Nov 08, 11[C09D]
RE36306 Method for protecting against duplication with a color copierJun 16, 95Sep 14, 99[B41M, B42D]
5595590 Method and compositions for authenticating a product or documentMay 31, 95Jan 21, 97[C09D]
5354723 Method for protecting against duplication with a color copierApr 19, 93Oct 11, 94[B41M, B42D]
5338066 Method and security substrate for protecting against duplication with a color copierApr 01, 92Aug 16, 94[B42D, B32B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0059,984 Document Authentication Using Security Ink and Chemical ReactantAbandonedSep 08, 08Mar 11, 10[G09F, B42D]
2005/0165,131 Invisible inkAbandonedMar 18, 05Jul 28, 05[C03C, C09D]
2005/0075,420 Invisible inkAbandonedSep 15, 04Apr 07, 05[C03C]
6140267 Laser printing method and substrateExpiredMay 24, 99Oct 31, 00[B41M]
6114281 Method and compositions for authenticating a product or documentExpiredJan 27, 98Sep 05, 00[B41M]
6106110 Secure thermal ink jet printing composition and substrate and method and apparatus utilizing sameExpiredOct 09, 96Aug 22, 00[B41J]
6086966 Method for authenticating a textile product and a thread and a woven label usable therewithExpiredMar 01, 99Jul 11, 00[B44F]
6013601 Laser printing method and substrateExpiredSep 12, 97Jan 11, 00[B41M]
5941572 Method for authenticating a textile product and a thread and a woven label usable therewithExpiredSep 12, 97Aug 24, 99[B42D]
5786509 Method and compositions for authenticating a product or documentExpiredSep 27, 96Jul 28, 98[C09D]
5774160 Latent image printing process and apparatus and substrate thereforExpiredMar 31, 97Jun 30, 98[B41M, B41J]
5750462 Latent image printing process and apparatus and substrate thereforExpiredDec 21, 94May 12, 98[B41M]
5682193 Latent image printing process and apparatus and substrate thereforExpiredMay 23, 96Oct 28, 97[B41M, B41J]
5516362 Security marking method and compositionExpiredJun 05, 95May 14, 96[B41M, C09D]
5424266 Latent image printing process and substrateExpiredDec 24, 92Jun 13, 95[B41M]
5421869 Security marking method and compositionExpiredMay 28, 93Jun 06, 95[B41M, C09D]

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