Robert D. Durgin

📍 Rockville, MD: #836 of 2,038 inventorsTop 45%

🗺 Maryland: #13,387 of 35,612 inventorsTop 40%

Overall (All Time): #2,333,472 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D303859	Frost and ice scraper	—	1989-10-03
4747175	Frost and ice scraper	—	1988-05-31