Patents and Trademarks
Finding Classifications in USPTO Using keywords to find the classifications you need: Go to the USPTO's Classification Text Search Tool and use your keywords to search All CPC (CPC replaced USPC in 2015 and includes up-to-date utility patents). Scan the results looking at the ones for Class Schemes ( class schedules) to determine the most relevant classification to your invention. Class Schemes ...
Free Trademark Search Tool Search the USPTO Database Instantly check if your brand name is already trademarked. Search millions of USPTO trademark records by name, status, owner, or class — all in one place.
USPTO Intranet: For patent examiners, classification information is available on the USPTO intranet at https://ptoweb. uspto .gov/patents/classification-resources/. These resources offer comprehensive access to classification data, schedules, and definitions, allowing users to search and browse patent classifications effectively.
All classes and subclasses ( class definitions) in the USPC are available online to USPTO personnel from the Classification Home Page under the heading Search Classification Data. The Classification Home Page (https://ptoweb. uspto .gov/patents/ classification-resources/ ) is accessible from the desktop via the Patent Examiner's Toolkit.

This particular example perfectly highlights why Uspto Class Expression Result is so captivating.
Library Guides
Need to Identify the Class or Subclass? Use the Classification Text Search Classification Text Search (aka keyword searching) If you aren't familiar with the classification of Patents, you can search for classification codes by keyword using a text matching tool. This search features appears on the right side of the USPTO Classification ...
Search Patent Classification Systems
Access patent classification systems and resources for efficient patent search and categorization.
The International Patent Classification (IPC), established by the Strasbourg Agreement (1971), provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain. A new version of the IPC enters into force each year on January 1. Access the IPC Publication
Classification Assistance
TMclass helps to search for and classify Goods and Services (terms) needed to apply for trade mark protection. It also translates a list of Goods and Services and verifies if those terms appear in the classification databases of the Participating Offices; Bulgaria, Czech Republic, Denmark, England, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Holland ...
Espacenet: free access to millions of patent documents. Find out if your invention is unique or if other inventors have filed patent applications that are considered to be prior art.