Patent Office vs Patent and Trademark Office Database

Patent Office and Patent and Trademark Office Database both are nouns.

Word	Noun	Adjective	Verb	Adverb
Patent Office	Yes	No	No	No
Patent and Trademark Office Database	Yes	No	No	No

As nouns, Patent Office and Patent and Trademark Office Database are synonyms defined as:

Patent Office and Patent and Trademark Office Database: the government bureau in the Department of Commerce that keeps a record of patents and trademarks and grants new ones

Patent Office (noun)	Patent and Trademark Office Database (noun)
the government bureau in the Department of Commerce that keeps a record of patents and trademarks and grants new ones	the government bureau in the Department of Commerce that keeps a record of patents and trademarks and grants new ones