Robert C. Burroughs

📍 Beltsville, MD: #18 of 160 inventorsTop 15%

🗺 Maryland: #5,505 of 35,612 inventorsTop 20%

Overall (All Time): #885,842 of 4,157,543Top 25%

Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
D403702	Railroad calendar	—	1999-01-05
5636841	Checker game using cube shaped checker pieces	—	1997-06-10
4902021	Checker and dice game	—	1990-02-20
4555235	Return top	—	1985-11-26
D267807	Calendar	—	1983-02-01
4247986	Projection measuring scale	—	1981-02-03