Inventor

Mark C. Sellnau

Inventor
Bloomfield Hills, MI, US

Overview

25→
Patents
1990–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 25 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F02Dprimary
F02DControlling combustion engines22%
Y02TClimate change mitigation technologies related to transportation22%
F02BInternal-combustion piston engines11%
F01LCyclically operating valves for machines or engines10%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof10%
F02FCylinders, pistons or casings, for combustion engines4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%
F01PCooling of machines or engines in general3%
B01DSeparation1%
PatentTitleYear
11,078,867Piston and bowl for gasoline direct injection compression ignition (GDCI)202111,060,497Cold start strategy and system for gasoline direct injection compression ignition engine202110,273,888GDCI transient EGR error compensation201910,012,185Fast GDCI heated air intake system20189,863,305'Low-cost high-efficiency GDCI engines for low octane fuels'20189,765,658'Valve train system for an internal combustion engine'20179,410,509'Adaptive individual-cylinder thermal state control using intake air heating for a GDCI engine'20169,097,174'System and method for conditioning intake air to an internal combustion engine'20158,997,698'Adaptive individual-cylinder thermal state control using piston cooling for a GDCI engine'20158,408,191'Engine combustion control using ignition dwell'20138,245,500'Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines'20127,681,441'Combustion control in an internal combustion engine'20107,454,286'Combustion control in an internal combustion engine'20087,308,872'Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation'20077,293,409'Process and system for improving combustion and exhaust aftertreatment of motor vehicle engines'20077,077,083'Electro-hydraulic lost-motion valve train'20066,810,844'Method for 3-step variable valve actuation'20046,705,259'3-step cam-profile-switching roller finger follower'20046,600,989'Apparatus and method for early intake valve closing'20036,560,526'Onboard misfire, partial-burn detection and spark-retard control using cylinder pressure sensing'20036,406,307'Annular electrical connector assembly'20026,204,715'Signal amplifying circuit'20015,367,904'Non-intrusive cylinder pressure sensor having improved response characteristics'19945,329,809'Non-intrusive cylinder pressure sensor'19944,969,352'Combustion pressure sensor'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2003Patents assigned to GEN MOTORS CORP (5)· patent assignee history
1990–2021Based in Bloomfield Hills, MI, US· patent location history
2001–2018Patents assigned to DELPHI TECH INC (18)· patent assignee history
2012–2017Patents assigned to SELLNAU MARK C (4)· patent assignee history
2016Patents assigned to DELPHI TECHNLOGIES INC (1)· patent assignee history
2018–2021Patents assigned to DELPHI TECH IP LTD (4)· patent assignee history
2021Based in West Bloomfield, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DELPHI TECH INC182001–2018
GEN MOTORS CORP51990–2003
DELPHI TECH IP LTD42018–2021
SELLNAU MARK Cself42012–2017
DELPHI TECHNLOGIES INC12016
Locations
LocationPatentsSpan
Bloomfield Hills, MI, US241990–2021
West Bloomfield, MI, US12021