Walter B. Hahne

CG Concrete Products Group: 1 patents #4 of 5Top 80%

📍 Newport Beach, CA: #697 of 1,653 inventorsTop 45%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,340,815 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4641993	Highway barrier with level internal ducts and construction method	—	1987-02-10
4567697	Utility vault cover seal	—	1986-02-04