DW

Donald F. Wilhelm

HC Helm Instrument Co.: 5 patents #1 of 10Top 10%
📍 Toledo, OH: #273 of 1,470 inventorsTop 20%
🗺 Ohio: #15,837 of 73,341 inventorsTop 25%
Overall (All Time): #1,065,730 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4526044 Load sensing probe Robert L. Moser 1985-07-02
4429579 Tie rod tension sensor 1984-02-07
4412456 Load sensing probe Robert L. Moser 1983-11-01
4302996 Apparatus and method for determining wire blank length 1981-12-01
4199758 Solid state indicating apparatus William J. Jones 1980-04-22