Barcode Patent

The history of the barcode patent dates back to the mid-20th century, with several key inventors and developments leading to its eventual creation. Here is an overview of the significant milestones:

1. Initial Concepts and Early Patents: The concept of using a machine-readable pattern to identify products was conceived in the late 1940s. In 1949, Norman Joseph Woodland and Bernard Silver filed the first patent for a barcode system in the United States. Their patent described a bull’s eye pattern that could be scanned to identify products.
2. Development of Linear Barcodes: In the early 1950s, the barcode concept evolved, and different variations of linear barcodes were proposed. In 1952, inventors Joseph Woodland and David Collins created a barcode system based on concentric circles known as the “Bullseye Code.” In 1959, inventors David J. Collins and Keith E. Kupp filed a patent for a linear barcode design called the “KarTrak system.” It utilized parallel lines of varying thicknesses.
3. Introduction of the Universal Product Code (UPC): The breakthrough moment for barcodes came in the 1970s with the development of the Universal Product Code (UPC). George J. Laurer, an engineer at IBM, played a pivotal role in creating the UPC barcode system. In 1973, he filed a patent for the UPC barcode design, which consisted of a series of parallel lines of varying widths.
4. Standardization and Commercial Adoption: The U.S. grocery industry recognized the potential of barcodes for product identification and initiated efforts to standardize barcode systems. The Universal Product Code was selected as the standard, and in 1974, the first product (a pack of Wrigley’s chewing gum) was scanned using a barcode scanner.
5. Global Expansion and Barcode Variations: As barcodes gained popularity, various barcode symbologies were developed to accommodate different types of data and industries. The European Article Numbering (EAN) system emerged as a global barcode standard, compatible with UPC. Additionally, two-dimensional (2D) barcodes, such as QR codes, were developed to encode more information in a smaller space.

It is worth noting that while patents played a role in protecting specific barcode designs, the barcode itself became a standardized technology available for public use. This allowed for widespread adoption and further innovation in barcode systems.

Today, barcodes are an integral part of various industries worldwide, enabling efficient product identification, supply chain management, and data capture. The barcode patent history showcases the collaborative efforts and ingenuity of inventors and organizations in creating this transformative technology.