Abstract
More than 11 100 plant patents have been granted US Patent and Trademark Office since 1931. The system for classifying such patents for efficient retrieval is a specialized part of the United States Patent Classification. It is described here under the following topics: purpose, the classification schedule, schedule organisation, relationship to design and utility patent classification, class definition, search notes, line notes, hierarchy, and special features of plant patents, such as coloration and the effect of commercial or market practice. The article then considers placement rules for consistent classification of such patents, searching for a patented plant, and aids for such searching. Illustrative examples of the schedule, and of the placement of and retrieval of plant patents are provided.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
