David P. Kapturowski

ST Spruce Environmental Technologies: 2 patents #2 of 4Top 50%

📍 Groveland, MA: #30 of 77 inventorsTop 40%

🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%

Overall (All Time): #2,222,513 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D437042	Radon fan	—	2001-01-30
D381411	Fan housing	—	1997-07-22