Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RE

Robert D. Eickhoff — 4 Patents

AMAmco: 2 patents #8 of 24Top 35%
Fountain, MN: #2 of 5 inventorsTop 40%
Minnesota: #16,016 of 52,454 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert D. Eickhoff has been granted 4 US patents while listed as an inventor at Amco. The first was granted in 1989 and the most recent in July 1990. Robert D. Eickhoff ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert D. Eickhoff in Fountain, MN, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4944520 Arrow shaft end adaptor apparatus and balance pin apparatus and method Conrad F. Fingerson, Bruce A. Nelson, Dennis L. Carlson 1990-07-31
4939618 Lightning protected electric fence controller system and method Conrad F. Fingerson, Andrew McKean 1990-07-03
4874180 Arrow shaft end adaptor apparatus and balance pin apparatus and method Conrad F. Fingerson, Dennis L. Carlson, Bruce A. Nelson 1989-10-17
4836504 Rail-type fence using electricity Conrad F. Fingerson 1989-06-06