TH

Theodore J. Holtermann

OM Outboard Marine: 12 patents #24 of 426Top 6%
📍 Milwaukee, WI: #163 of 2,770 inventorsTop 6%
🗺 Wisconsin: #3,476 of 40,088 inventorsTop 9%
Overall (All Time): #390,222 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
6158409 Two-stroke engine piston bowl configurations George T. Gillespie, Peter W. Brown, Francis A. McGinnity, Robert L. Niemchick, Erik R. Jorgensen +3 more 2000-12-12
5970945 Barrier divided combustion chamber for fuel injection two-stroke engine 1999-10-26
5809776 Catalytic converter with radial outflow and by-pass valve Francis A. McGinnity 1998-09-22
5425232 Marine propulsion device with means for supplying secondary air to catalytic converter 1995-06-20
5408827 Marine propulsion device with improved catalyst support arrangement George G. Lassanske, Lee A. Woodward 1995-04-25
5372530 Outboard motor with separated exhaust gas pulsing and exhaust gas discharge Lee A. Woodward 1994-12-13
5306185 Catalytic elements for marine propulsion device George G. Lassanske, Edgar Rose 1994-04-26
4890587 Fuel residual handling system 1990-01-02
4820213 Fuel residual handling system James L. Hofmann 1989-04-11
4719881 Oil metering device for supplying oil to a fuel tank William F. Ziehm 1988-01-19
4337054 Outboard motor including folded tuned exhaust gas passage Otto H. Scharpf 1982-06-29
4304558 Marine propulsion device including propeller shroud 1981-12-08
4204384 Lawn mower including means for stopping engine 1980-05-27