Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Gordon; Douglas C.
Address:
Kinburn, CA
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4891666 Copy indicator for a document January 2, 1990
A printed background pattern for a document is described, wherein the pattern masks a copy indicator which is revealed upon making a copy of the pattern using a digital optical scanning means. The background pattern comprises an area of microprinting with a type size having a line re










 
 
  Recently Added Patents
Electronic system with vertical intermetallic compound
Automatic population of feature capabilities on a communication device
Sample chamber for laser ablation inductively coupled plasma mass spectroscopy
Automatic image-content based adjustment of printer printing procedures
Verifiable service policy implementation for intermediate networking devices
Touch screen tablet
Targeted gene deletions for polysaccharide slime formers
  Randomly Featured Patents
Tee nut fastener member
Oral care compositions comprising diglycerol
Apparatus and methods for winding wire coils of dynamoelectric machine cores
Antenna device having no less than two antenna elements
Method and means for bleeding hydraulic brakes
Antibiotics produced by species of actinoplanes
Compact portable kitchen
Electromagnetic assembly with gas springs for operating a cylinder valve of an internal-combustion engine
Controlling engine coolant flow and valve assembly therefor
1,2,4-triazolo[1,2-a]pyridazine-1,3(2H)-dione herbicides for citrus, sugarcane, oil palm and the like