DH

Donald J. Hemmelgarn

TM The Minster Machine: 2 patents #18 of 57Top 35%
IP International Paper: 1 patents #445 of 935Top 50%
📍 Minster, OH: #12 of 67 inventorsTop 20%
🗺 Ohio: #18,857 of 73,341 inventorsTop 30%
Overall (All Time): #1,307,897 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4534725 Apparatus for manufacturing ovenable paperboard articles Arthur L. Grow 1985-08-13
4376556 Linear bearing arrangement Raymond A. Bergman 1983-03-15
4206699 Retracting bolster for a press 1980-06-10
4206701 Lock mechanism for press shutheight adjustment 1980-06-10