RK

Robert Koopmans

OG Ontario Power Generation: 1 patents #1 of 2Top 50%
📍 Acton, CA: #1 of 3 inventorsTop 35%
Overall (2002): #127,982 of 266,432Top 50%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6337013 Removable filter with jack sealing device and vacuum cleaning heads Kevin Graydon McCauley 2002-01-08