Erkki O. Seppanen

📍 Vancouver, WA: #761 of 1,812 inventorsTop 45%

🗺 Washington: #35,300 of 76,902 inventorsTop 50%

Overall (All Time): #2,368,865 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4306934	Method and apparatus for forming paper	—	1981-12-22
4243482	Forming paper using a curved fin to facilitate web transfer	—	1981-01-06