Bertil S. M. Granborg

📍 Kailua, HI: #54 of 169 inventorsTop 35%

🗺 Hawaii: #729 of 2,560 inventorsTop 30%

Overall (All Time): #2,217,552 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6441343	Heating system for structures	—	2002-08-27
5266773	Heating device for vehicle operational parts	—	1993-11-30