This inventor holds 2 USPTO granted patents. Top assignees: Scientific Games of California, Inc., Other. Active years: 1988-1997.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 2 
1 out of 834,601 Years Active: 1988-1997
Title: Bradley W. Walton: Inventor of Secure Scratch-Off Game Cards
Introduction
Bradley W. Walton is an inventor based in San Jose, California. His work includes security features for scratch-off game cards and other indicia-bearing documents. He is associated with 2 patents.
Latest Patents
“Game Ticket Confusion Patterns” describes ways to improve the security of game cards, including instant lottery tickets. The invention places confusion patterns beneath a primer layer and on a release coat above the play indicia. It also describes using ink that can bleed through the card when exposed to certain solvents, providing evidence of tampering.
“Information Bearing Article with Tamper Resistant Scratch-Off Opaque” concerns an indicia-bearing article, such as a lottery ticket or contest form. Its opaque coating conceals the indicia and contains metal particles, along with an undissolved dye that is soluble in at least one solvent. The dye is hidden beneath the metal particles and can provide visible evidence of solvent exposure.
Career Highlights
Walton’s listed company affiliation includes Scientific Games of California, Inc. His patent work reflects an emphasis on protecting game cards and documents from tampering and unauthorized alteration.
Collaborations
Walton’s listed coworkers include Mark C. Tevis and Stanley Litman.
Conclusion
Bradley W. Walton’s inventions focus on practical security measures for scratch-off game cards and other documents, using layered patterns and solvent-responsive materials to help reveal tampering.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile