DR

David Eugene Robertson

RB Rain Bird: 2 patents #4 of 35Top 15%
📍 Glendora, CA: #6 of 27 inventorsTop 25%
🗺 California: #12,984 of 65,961 inventorsTop 20%
Overall (2022): #166,139 of 548,613Top 35%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11406999 Irrigation nozzle with one or more grit vents David C. Belongia 2022-08-09
11247219 Reduced precipitation rate nozzle Samuel C. Walker, John James Wlassich, Lee James Shadbolt 2022-02-15