Search the USPTO's Patent Classification System
- Class refers to a USPTO mainline (main) class. Subclass refers to a subclass, sub-subclass, etc.
- Search covers the entire patent classification system, nearly 150,00 classes and subclasses.
- Searches the title and definition of each class and subclass as well as the title of the main class (for subclasses).
- Searches are not case-sensitive.
For results containing:
Enter:
electronic OR display
electronic display
electronic AND display
+electronic +display
electronic AND NOT display
+electronic -display
complete phrase electronic display
"electronic display"
any word starting with electr
electr*
electronic AND display OR electronic AND apparatus
+electronic +(display apparatus)