Inventor
Michael A. Karls
Inventor
Hilbert, WI, US
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B63Hprimary
B63HMarine propulsion or steering33%
F01PCooling of machines or engines in general21%
F02BInternal-combustion piston engines21%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general5%
F16DCouplings for transmitting rotation5%
F16FSprings5%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids3%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding2%
B63BShips or other waterborne vessels2%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges2%
PatentTitleYear
6,733,352'Electronically controlled cooling system for a marine propulsion engine'20046,478,543'Torque transmitting device for mounting a propeller to a propeller shaft of a marine propulsion system'20026,146,223'Marine propulsion unit with water inlets in all quadrants of the front portion of its torpedo-shape gearcase'20006,068,529'Marine propulsion unit with dual water inlet structure'20005,902,160'Twin propeller marine propulsion unit'19995,791,950'Twin propeller marine propulsion unit'19985,660,536'High capacity simplified sea water pump'19975,484,264'Torsionally twisting propeller drive sleeve and adapter'19965,470,263'Method and apparatus for improving reverse thrust of a marine drive'19955,415,575'Marine drive propeller clutch'19955,322,416'Torsionally twisting propeller drive sleeve'19945,304,079'Supplemental remote mounted marine engine cooling system'19945,290,147'Variable pitch marine propeller with shift biasing and synchronizing mechanism'19945,263,389'Torque rated floating marine propeller wrench'19935,244,348'Propeller drive sleeve'19935,219,272'Variable pitch marine propeller with hydrodynamic shifting'19935,022,875'Marine propeller locking tab washer'19914,925,412'Marine drive weed deflector'19904,842,559'Position control system for a marine propulsion device'19894,832,639'Marine drive with air trap in auxiliary water inlet'19894,832,640'Marine gearcase water inlet divider'19894,790,783'Marine propulsion combination with improved cooling'19884,781,632'Anti-ventilation plate'19884,752,257'Cooling water intake with increased flow'19884,636,175'Water inlet for outboard propulsion unit'19874,589,851'Flushing device for outboard motors'19864,540,009'Flushing device for outboard motors'19854,392,779'Marine drive water pump'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–2004Patents assigned to BRUNSWICK CORP (28)· patent assignee history
1983–2004Based in Hilbert, WI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BRUNSWICK CORP | 28 | 1983–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hilbert, WI, US | 28 | 1983–2004 |