Walter A. Bretz

📍 Nevada City, CA: #1 of 22 inventorsTop 5%

🗺 California: #12,984 of 65,961 inventorsTop 20%

Overall (2022): #100,015 of 548,613Top 20%

Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
11351583	Method for bioremediation of heavy metal contaminated soil	—	2022-06-07
11235012	Combination and use of red propolis and red algae	—	2022-02-01