Inventor · disambiguated record
Roger E. Koepsel
Also filed as: KOEPSEL ROGER E
21 granted patents·311 citations·filing 1979–2024
96Inventor score
Files withBRUNSWICK CORP21
Top patents by PatentIndex Score
21 records- 0195US7637722B1Marine propellerBRUNSWICK CORP·Filed 2006·Granted Dec 29, 2009·36 cites·10 claims
- 0294US11459074B1Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitationBRUNSWICK CORP·Filed 2020·Granted Oct 4, 2022·3 cites·16 claims
- 0391US9745948B1Marine propeller and method of design thereofBRUNSWICK CORP·Filed 2014·Granted Aug 29, 2017·15 cites·17 claims
- 0490US11713102B1Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitationBRUNSWICK CORP·Filed 2022·Granted Aug 1, 2023·1 cites·20 claims
- 0588US4897061AGearcase exhaust vent for a marine propulsion systemBRUNSWICK CORP·Filed 1988·Granted Jan 30, 1990·33 cites·7 claims
- 0686US7086836B1Dual rate torque transmitting device for a marine propellerBRUNSWICK CORP·Filed 2004·Granted Aug 8, 2006·30 cites·33 claims
- 0783US12391353B1Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitationBRUNSWICK CORP·Filed 2024·Granted Aug 19, 2025·0 cites·20 claims
- 0882US6340290B1Controllable pitch propeller with a fail safe increased pitch movementBRUNSWICK CORP·Filed 2000·Granted Jan 22, 2002·22 cites·20 claims
- 0981US5236310AMarine propeller with performance pitch, including five blade versionBRUNSWICK CORP·Filed 1992·Granted Aug 17, 1993·23 cites·1 claims
- 1079US11981411B1Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitationBRUNSWICK CORP·Filed 2023·Granted May 14, 2024·0 cites·14 claims
- 1179US5791950ATwin propeller marine propulsion unitBRUNSWICK CORP·Filed 1996·Granted Aug 11, 1998·19 cites·10 claims
- 1277US5290147AVariable pitch marine propeller with shift biasing and synchronizing mechanismBRUNSWICK CORP·Filed 1991·Granted Mar 1, 1994·21 cites·17 claims
- 1376US4331429ASymmetrical propellerBRUNSWICK CORP·Filed 1979·Granted May 25, 1982·22 cites·5 claims
- 1469USD319210SFive blade marine propellerBRUNSWICK CORP·Filed 1989·Granted Aug 20, 1991·15 cites·1 claims
- 1566US5219272AVariable pitch marine propeller with hydrodynamic shiftingBRUNSWICK CORP·Filed 1991·Granted Jun 15, 1993·14 cites·28 claims
- 1662US5104292AMarine propeller with performance pitch, including five blade versionBRUNSWICK CORP·Filed 1989·Granted Apr 14, 1992·21 cites·2 claims
- 1752US6068529AMarine propulsion unit with dual water inlet structureBRUNSWICK CORP·Filed 1999·Granted May 30, 2000·7 cites·4 claims
- 1852US5902160ATwin propeller marine propulsion unitBRUNSWICK CORP·Filed 1998·Granted May 11, 1999·14 cites·6 claims
- 1933US4993151AMethod of making an easily removed marine propellerBRUNSWICK CORP·Filed 1990·Granted Feb 19, 1991·5 cites·1 claims
- 2033US4925369AEasily removed marine propellerBRUNSWICK CORP·Filed 1987·Granted May 15, 1990·6 cites·4 claims
- 2133US4789303AMarine propeller carry handle and emergency spare kitBRUNSWICK CORP·Filed 1987·Granted Dec 6, 1988·4 cites·3 claims
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