We found 4 dictionaries that define the word patent offices:

General (3 matching dictionaries)

1. patent offices: Merriam-Webster
2. Patent Offices: Collins English Dictionary
3. patent offices: TheFreeDictionary.com

Computing (1 matching dictionary)

4. patent offices: Encyclopedia

(Note: See patent_office as well.)

Definitions from Wiktionary (patent office) ▸ noun:  An official organization that can issue patents. ▸ Also see patent_office ▸ Words similar to patent offices ▸ Usage examples for patent offices ▸ Idioms related to patent offices ▸ Wikipedia articles (New!) ▸ Words that often appear near patent offices ▸ Rhymes of patent offices ▸ Invented words related to patent offices