JH

James W. Hall

JD John Deere: 2 patents #5 of 169Top 3%
📍 Washington, DC: #1 of 59 inventorsTop 2%
🗺 District of Columbia: #1 of 59 inventorsTop 2%
Overall (1989): #9,867 of 140,708Top 8%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4887420 Modular mower deck with light-weight housing John Robert Cerny, Jr., Jay H. Olson, Leon P. Erdman 1989-12-19
4884994 Axial flow rotary separator Maurice A. Popelier, Josef W. Klimmer, Neil L. West, Loren W. Peters 1989-12-05
4802501 Portable shelter 1989-02-07