David A. Ratner

📍 Walnut Creek, CA: #11 of 43 inventorsTop 30%

🗺 California: #1,105 of 6,198 inventorsTop 20%

Overall (1982): #70,158 of 81,411Top 90%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4312381	Air flow damping system	—	1982-01-26