DI

Donald E. Ingermann

CI Century International: 9 patents #1 of 10Top 10%
AB Amf Bowling: 1 patents #20 of 45Top 45%
📍 Arvada, CO: #113 of 1,140 inventorsTop 10%
🗺 Colorado: #4,613 of 40,980 inventorsTop 15%
Overall (All Time): #528,218 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5161277 Variable speed transfer roller for bowling lane dressing apparatus Ronald L. Smith 1992-11-10
5063633 Fluid handling apparatus for bowling lane cleaning device Ronald L. Smith, Stephen F. Caffrey, Lonney J. Steinhoff 1991-11-12
4962565 Automatic vacuum bowling lane stripper Ronald L. Smith, Stephen F. Caffrey, Lonney J. Steinhoff 1990-10-16
4959884 Combination bowling lane stripper and dressing apparatus Ronald L. Smith, Stephen F. Caffrey, Lonney J. Steinhoff 1990-10-02
4920604 Automatic vacuum bowling lane stripper Ronald L. Smith, Stephen F. Caffrey, Lonney J. Steinhoff 1990-05-01
4856138 Bowling lane vacuum with floating head Stephen F. Caffrey, Alan R. DeVoe, Ronald L. Smith, Ronald G. Sullivan 1989-08-15
4757831 Golf club cleaning machine Lonney J. Steinhoff 1988-07-19
D281362 Bowling lane duster Ronald L. Smith, Jimmie L. Knoll, Stephen F. Caffrey, Endre Barsi, Joseph C. Dechant 1985-11-12
4510642 Combination bowling lane stripper and duster Ronald L. Smith, Jimmie L. Knoll, Stephen F. Caffrey, Endre Barsi, Joseph C. Dechant 1985-04-16
4246674 Automatic bowling lane stripper Eldon G. Sauer, Ronald L. Smith 1981-01-27