Inventor
LANGENFELD GREGG D
US32 patents
⚠️ This page may combine multiple inventors who share the name “LANGENFELD GREGG D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRUNSWICK CORP
28 patentsUS9616987B1Apr 11, 2017
Marine engines and exhaust systems for marine engines
BRUNSWICK CORP24 citations93
US9365274B1Jun 14, 2016
Outboard marine propulsion devices having cooling systems
BRUNSWICK CORP20 citations92
US9365275B1Jun 14, 2016
Outboard marine propulsion devices and exhaust systems for outboard marine propulsion devices
BRUNSWICK CORP17 citations92
US9174818B1Nov 3, 2015
Marine engines and exhaust systems for marine engines having a catalyst for treating exhaust
BRUNSWICK CORP19 citations92
US8763566B1Jul 1, 2014
Apparatus for cooling an engine of a marine propulsion system
BRUNSWICK CORP22 citations92
US10927745B1Feb 23, 2021
Cooling apparatus configurations for marine engines having a supercharger
BRUNSWICK CORP17 citations86
US9457881B1Oct 4, 2016
Outboard marine engines having a bedplate and cover assembly
BRUNSWICK CORP12 citations84
US9193429B1Nov 24, 2015
Systems and methods for indicating oil level in outboard motors
BRUNSWICK CORP7 citations84
US10981636B1Apr 20, 2021
Marine engines having a supercharger
BRUNSWICK CORP16 citations83
US10934928B1Mar 2, 2021
Lubrication apapratus configurations for marine engines having a supercharger
BRUNSWICK CORP11 citations83
US10344639B1Jul 9, 2019
Cooling apparatuses for cooling lubricant in a crankcase of a marine engine
BRUNSWICK CORP12 citations83
US9644514B1May 9, 2017
Exhaust systems for marine propulsion devices having sealing arrangements
BRUNSWICK CORP7 citations83
US11073116B1Jul 27, 2021
Cooling systems for marine engines having a supercharger
BRUNSWICK CORP15 citations82
US9359058B1Jun 7, 2016
Outboard marine propulsion devices and methods of making outboard marine propulsion devices having exhaust runner cooling passages
BRUNSWICK CORP13 citations82
US10975762B1Apr 13, 2021
Marine engines having a supercharger and charge air coolers
BRUNSWICK CORP16 citations81
US11421578B1Aug 23, 2022
Combination lubricant/filtration device for outboard motors
BRUNSWICK CORP5 citations71
US9758228B1Sep 12, 2017
Exhaust manifolds for outboard marine engines
BRUNSWICK CORP3 citations71
US9944373B1Apr 17, 2018
Arrangements for lubricating outboard marine engines
BRUNSWICK CORP3 citations67
US10988222B1Apr 27, 2021
Outboard motors and tie bar apparatuses for coupling an outboard motor to an adjacent outboard motor
BRUNSWICK CORP4 citations66
US9518495B1Dec 13, 2016
Exhaust arrangements for marine propulsion devices
BRUNSWICK CORP2 citations61
US11511840B1Nov 29, 2022
Marine engines having a supercharger
BRUNSWICK CORP0 citations60
US11459943B1Oct 4, 2022
Sealing configurations for marine engines having a supercharger and charge air cooler
BRUNSWICK CORP0 citations60
US12522337B1Jan 13, 2026
Propulsor assemblies having wear resistant snubber
BRUNSWICK CORP0 citations57
US9970331B1May 15, 2018
Arrangements for outboard marine engines having reduced width
BRUNSWICK CORP1 citations51
US10174656B2Jan 8, 2019
Exhaust systems and methods of assembling exhaust systems for marine propulsion devices
BRUNSWICK CORP0 citations50
US9840955B1Dec 12, 2017
Exhaust systems and methods of assembling exhaust systems for marine propulsion devices
BRUNSWICK CORP0 citations50
US9551264B1Jan 24, 2017
Exhaust arrangements for marine propulsion devices
BRUNSWICK CORP0 citations41
US9470130B1Oct 18, 2016
Exhaust arrangements for marine propulsion devices
BRUNSWICK CORP0 citations40