P

Inventor

BELTER DAVID J

US43 patents
⚠️ This page may combine multiple inventors who share the name “BELTER DAVID J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BRUNSWICK CORP

38 patents
US7001231B1Feb 21, 2006

Dual water injector for primary and idle relief exhaust passages

BRUNSWICK CORP71 citations95
US9828080B1Nov 28, 2017

Lockout for remote controls on marine vessels

BRUNSWICK CORP30 citations93
US9616987B1Apr 11, 2017

Marine engines and exhaust systems for marine engines

BRUNSWICK CORP24 citations93
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
US7942138B1May 17, 2011

Outboard motor with exhaust gas recirculation cooling

BRUNSWICK CORP36 citations92
US7318396B1Jan 15, 2008

Cooling system for a marine propulsion engine

BRUNSWICK CORP37 citations92
US7000584B1Feb 21, 2006

Thermally insulated cylinder liner

BRUNSWICK CORP28 citations92
US7264520B1Sep 4, 2007

Cooling system for an outboard motor having both open and closed loop portions

BRUNSWICK CORP37 citations91
US6821171B1Nov 23, 2004

Cooling system for a four cycle outboard engine

BRUNSWICK CORP38 citations89
US9457881B1Oct 4, 2016

Outboard marine engines having a bedplate and cover assembly

BRUNSWICK CORP12 citations84
US8783217B1Jul 22, 2014

Method for cooling a four stroke marine engine with increased segregated heat removal from its exhaust manifold

BRUNSWICK CORP11 citations84
US7892057B1Feb 22, 2011

Outboard motor with idle relief valve

BRUNSWICK CORP8 citations84
US6883471B1Apr 26, 2005

Vortex enhanced cooling for an internal combustion engine

BRUNSWICK CORP13 citations84
US10995824B1May 4, 2021

Multi-speed transmissions for marine propulsion devices

BRUNSWICK CORP7 citations83
US10507898B1Dec 17, 2019

Lockout for remote controls on marine vessels

BRUNSWICK CORP12 citations83
US9903251B1Feb 27, 2018

Outboard motors and exhaust systems for outboard motors having an exhaust conduit supported inside the V-shape

BRUNSWICK CORP11 citations83
US7021262B1Apr 4, 2006

Undercowl plenum chamber with preferential air paths

BRUNSWICK CORP15 citations83
US7980231B1Jul 19, 2011

Outboard motor with an exhaust gas recirculation system and an idle exhaust relief system

BRUNSWICK CORP7 citations82
US7198019B1Apr 3, 2007

Lubricating system for a marine engine

BRUNSWICK CORP7 citations74
US11586207B1Feb 21, 2023

Marine propulsion system and method for preventing collision of marine propulsion devices

BRUNSWICK CORP2 citations73
US11548604B1Jan 10, 2023

Marine engine crankcase cover with integral oil cooler

BRUNSWICK CORP5 citations73
US11347223B1May 31, 2022

Marine propulsion system and method for preventing collision of marine propulsion devices

BRUNSWICK CORP2 citations73
US9701384B1Jul 11, 2017

Outboard marine engines and methods of removing cooling water from outboard marine engines

BRUNSWICK CORP4 citations73
US7178500B1Feb 20, 2007

Marine engine with a water cooled oil gallery

BRUNSWICK CORP8 citations73
US6733352B1May 11, 2004

Electronically controlled cooling system for a marine propulsion engine

BRUNSWICK CORP10 citations73
US12134454B1Nov 5, 2024

Marine propulsion system and method with single rear drive and lateral marine drive

BRUNSWICK CORP3 citations71
US9228455B1Jan 5, 2016

Outboard motors and marine engines having cam phaser arrangements

BRUNSWICK CORP6 citations71
US7128027B1Oct 31, 2006

Cooling system for an outboard motor

BRUNSWICK CORP8 citations71
US9944374B1Apr 17, 2018

Outboard motors and oil pickup devices for outboard motors

BRUNSWICK CORP5 citations68
US9944373B1Apr 17, 2018

Arrangements for lubricating outboard marine engines

BRUNSWICK CORP3 citations67
US12539953B1Feb 3, 2026

Configurable shift and throttle mechanism for tiller of marine drive

BRUNSWICK CORP0 citations62
US11970252B1Apr 30, 2024

Systems and methods for controlling power generation and transmission output speed for marine propulsion devices

BRUNSWICK CORP0 citations62
US11691702B2Jul 4, 2023

Systems and methods for controlling power generation and transmission output speed for marine propulsion devices

BRUNSWICK CORP0 citations62
US9527568B1Dec 27, 2016

Stern drives having accessible cooling water sea pump

BRUNSWICK CORP2 citations61
US6699086B1Mar 2, 2004

Coolant management system for a marine propulsion device

BRUNSWICK CORP4 citations60
US12479560B1Nov 25, 2025

Marine propulsion system and control method

BRUNSWICK CORP0 citations52
US9970331B1May 15, 2018

Arrangements for outboard marine engines having reduced width

BRUNSWICK CORP1 citations51

TAYLOR CHRISTOPHER J

3 patents

LANGENFELD GREGG D

1 patent

BELTER DAVID J

1 patent