US Patent No: 5,650,248

Number of patents in Portfolio can not be more than 2000

Process for making machine readable images

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Importance

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Abstract

A method of identifying an object by a machine readable image applied to it in which the image is produced by a plurality of fine particles embossed with a machine readable pattern produced by replicating contact with a diffraction grating having from about 5,000 to about 11,000 grooves per cm.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ECKART AMERICA CORPORATIONPASADENA, CA, US10

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benoit, Dennis R Simpsonville, SC 12 566
Josephy, Karl Los Angeles, CA 34 680
Miekka, Richard G St. Petersburg, FL 14 624
Rettker, James P Glenwood, IL 16 299
Thomas, Richard M Dyer, IL 9 279

Cited Art

Patent Info (Count) # Cites Year
 
VAPOR TECHNOLOGIES, INC. (2)
4,898,623 Method of shaping hard difficult-to-roll alloys 7 1988
5,011,638 Method of making open-pore structures 19 1988
 
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION (1)
5,428,479 Diffraction grating and method of manufacture 20 1994
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,481,999 Method of forming a thin unbacked metal foil 8 1982
 
JDS UNIPHASE CORPORATION (1)
5,071,597 Plastic molding of articles including a hologram or other microstructure 53 1989
 
RESERVE BANK OF AUSTRALIA (1)
5,335,113 Diffraction grating 22 1991
 
SONY CORPORATION (1)
5,467,239 Disc cartridge withribbed shutter 6 1992
 
THE STANDARD REGISTER COMPANY (1)
5,403,040 Optically variable and machine-readable device for use on security documents 12 1992
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
5,126,529 Method and apparatus for fabrication of three-dimensional articles by thermal spray deposition 68 1990
5,521,030 Process for making holographic embossing tools 36 1995

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
JDS UNIPHASE CORPORATION (22)
6,761,959 Diffractive surfaces with color shifting backgrounds 28 1999
6,692,830 Diffractive pigment flakes and compositions 30 2001
6,841,238 Chromatic diffractive pigments and foils 30 2002
6,749,777 Diffractive pigment flakes and compositions 28 2002
6,987,590 Patterned reflective optical structures 26 2003
7,005,178 Security articles having diffractive surfaces and color shifting backgrounds 6 2003
7,754,112 Methods for forming security articles having diffractive surfaces and color shifting backgrounds 0 2003
7,029,745 Security articles having diffractive surfaces and color shifting backgrounds 4 2003
7,224,528 Optically variable security devices 8 2005
7,645,510 Provision of frames or borders around opaque flakes for covert security applications 0 2005
7,667,895 Patterned structures with optically variable effects 1 2005
8,343,615 Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures 0 2006
7,674,501 Two-step method of coating an article for security printing by application of electric or magnetic field 1 2006
7,630,109 Covert security coating 0 2006
7,625,632 Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom 3 2006
7,876,481 Patterned optical structures with enhanced security feature 0 2006
7,729,026 Security device with metameric features using diffractive pigment flakes 0 2006
7,934,451 Apparatus for orienting magnetic flakes 1 2007
8,118,963 Stamping a coating of cured field aligned special effect flakes and image formed thereby 0 2007
7,550,197 Non-toxic flakes for authentication of pharmaceutical articles 1 2007
7,880,943 Patterned optical structures with enhanced security feature 0 2007
8,025,952 Printed magnetic ink overt security image 1 2007
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (4)
6,112,388 Embossed metallic flakelets and method for producing the same 26 1998
6,168,100 Method for producing embossed metallic flakelets 32 1999
6,432,245 Method for manufacturing a thin metal film with embossed pattern 0 1999
6,303,222 Embossed metallic flakelets and method for producing the same 0 2000
 
BASF SE (1)
8,015,919 Security printing using a diffraction grating 1 2004
 
NANO-TEX, INC. (1)
7,662,873 Methods for marking fibrous substrates 0 2004
 
NOMA HOLDING S.A. (1)
6,673,420 Inorganic sheet carrying symbols for making pigments 4 2001
 
SECURE SSOURCE TECHNOLOGIES, INC. (1)
6,315,329 Methods for detecting fraudulent instruments 4 1999