×

Material coding using lasers

  • US 6,315,202 B2
  • Filed: 08/11/1997
  • Issued: 11/13/2001
  • Est. Priority Date: 08/11/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of laser marking, coding, and decoding, comprising:

  • using a laser to mark information on an article, said article being an article of clothing, leather or fabric, which information represents some characteristic of the article, said information being marked by using the laser to change the material in a way that changes the physical appearance of the article;

    imaging the information from the article; and

    decoding the imaged information to determine the characteristic of the article.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×