OI

O. Stephan Irgens

📍 Holden, MO: #276 of 898 inventorsTop 35%
🗺 Missouri: #6,609 of 23,789 inventorsTop 30%
Overall (All Time): #1,490,434 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9603196 Self-regulating semi-conductive flexible heating element Monica Irgens 2017-03-21
8279033 Transformer with isolated cells 2012-10-02
5961869 Electrically insulated adhesive-coated heating element 1999-10-05