Donald J. Cretzler

📍 San Diego, CA: #11,944 of 23,606 inventorsTop 55%

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

Overall (All Time): #2,271,440 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5644724	Point-of-sale tax collection system and method of using same	—	1997-07-01
5393103	Method and coupler for joining conduits and a method of making the coupler	—	1995-02-28