HH

Hartwick A. Haugen

3M: 4 patents #3,441 of 11,543Top 30%
📍 Roseville, MN: #197 of 611 inventorsTop 35%
🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,298,933 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5169716 Encapsulant compositions for use in signal transmission devices Thomas S. Croft 1992-12-08
4985475 Encapsulant compositions for use in signal transmission devices Thomas S. Croft 1991-01-15
4857563 Encapsulant compositions for use in signal transmission devices Thomas S. Croft 1989-08-15
4756851 Soap-thickened reenterable gelled encapsulants James E. Billigmeier, James D. Groves, Richard J. Pokorny 1988-07-12