Lawrence F. Gelbman

📍 Yonkers, NY: #164 of 588 inventorsTop 30%

🗺 New York: #38,318 of 115,490 inventorsTop 35%

Overall (All Time): #1,666,770 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4900359	Cellular concrete	—	1990-02-13
4673437	Concrete block additive and improved concrete blocks produced therewith	—	1987-06-16
4568390	Concrete block additive and improved concrete blocks produced therewith	—	1986-02-04