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Inventor

Charles E. Roberts, Jr.

Inventor
Helotes, TX, US

Overview

42→
Patents
1979–2016
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 42 as inventor

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

Y02Tprimary
Y02TClimate change mitigation technologies related to transportation23%
F02BInternal-combustion piston engines19%
F02DControlling combustion engines15%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general8%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers5%
F02PIgnition, other than compression ignition, for internal-combustion engines3%
F16CShafts3%
Y10TTechnical subjects covered by former us classification3%
F02FCylinders, pistons or casings, for combustion engines2%
PatentTitleYear
9,512,871'Variable area journal bearing'20169,512,762'Internal combustion engine having dedicated cylinder(s) for generation of both EGR and exhaust aftertreatment reductant for NOx-reducing catalyst'20169,279,361'Piston bowl with spray jet targets'20169,181,980'Fluid bearings with adjustable frictional load characteristics'20158,955,224'Fluid bearings with adjustable frictional load characteristics'20158,948,999'Fuel injection during negative valve overlap for stoichiometric diesel operations'20158,938,948'Diesel engine exhaust aftertreatment system and method of operation'20158,910,619'Enhanced combustion for spark ignition engine using electromagnetic energy coupling'20148,857,381'Process and system for controlling effective compression ratios in an engine cylinder'20148,677,974'Piston bowl with flat bottom'20148,594,909'Internal exhaust gas recirculation for stoichiometric operation of diesel engine'20138,562,924'Control of NO/NOx ratio to improve SCR efficiency for treating engine exhaust'20138,555,854'Piston bowl with deflecting features'20138,459,229'Piston bowl with spray jet targets'20138,413,832'Closure with tamper-evident feature'20138,165,890'Green rating system and associated marketing methods'20128,165,891'Green rating system and associated marketing methods'20127,857,155'Closure for high torque installation on a container'20107,822,531'Stratified charge gasoline direct injection systems using exhaust gas recirculation'20107,721,541'Secondary internal combustion device for providing exhaust gas to EGR-equipped engine'20107,621,120'Hybrid technology for lean NOx trap and particulate filter regeneration control'20097,495,447'Benchtop test system for testing spark plug durability'20097,299,623'Method for controlling exhaust gas temperature and space velocity during regeneration to protect temperature sensitive diesel engine components and aftertreatment devices'20077,236,876'Use of transient data to derive steady state calibrations for dynamic systems'20077,142,975'Virtual cylinder pressure sensor with individual estimators for pressure-related values'20067,017,547'Method and apparatus for controlling liquid-phase fuel penetration distance in a direct-fuel injected engine'20067,010,914'Method for controlling boost pressure in a turbocharged diesel engine'20066,966,309'In-cylinder reburn method for emissions reduction'20056,962,143'High-efficiency, low emission gasoline engines for heavy-duty applications'20056,948,310'Use of a variable valve actuation system to control the exhaust gas temperature and space velocity of aftertreatment system feedgas'20056,832,700'Toggle-action dispensing closure with an actuation-prevention system incorporating permanent deformation'20046,792,899'Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall'20046,732,507'NOx aftertreatment system and method for internal combustion engines'20046,708,666'Multi-zone combustion chamber for combustion rate shaping and emissions control in premixed-charge combustion engines'20046,662,760'Method and apparatus for controlling combustion timing in an homogenous-charge compression-ignition engine'20036,557,520'Multi-zone combustion chamber and method for combustion control in compression-ignited reciprocating engines'20036,543,398'High efficiency compression ignition aftertreatment devices for combined use of lean-burn combustion systems and three-way catalysts'20036,460,712'One-piece tamper-evident closure system with a resealable, hinged lid'20026,378,489'Method for controlling compression ignition combustion'20026,240,912'Method for in-cylinder catalytic oxidation of hydrocarbons in direct injected spark ignition engines'20015,676,270'Threaded container torque retention system for use with a threaded closure'19974,139,841'Electromagnetic information display system'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979Based in Norristown, PA, US· patent location history
1997–2013Patents assigned to APTARGROUP INC (2)· patent assignee history
1997–2013Based in Eagle, WI, US· patent location history
2001–2016Patents assigned to SOUTHWEST RES INST (33)· patent assignee history
2001–2009Based in San Antonio, TX, US· patent location history
2005–2016Based in Helotes, TX, US· patent location history
2012Based in London, GB· patent location history
2013–2016Patents assigned to ROBERTS JR CHARLES E (9)· patent assignee history
2013–2016Patents assigned to ROTHBAUER RAINER J (4)· patent assignee history
2013–2015Patents assigned to KOCI CHAD P (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SOUTHWEST RES INST332001–2016
ROBERTS JR CHARLES Eself92013–2016
ROTHBAUER RAINER J42013–2016
APTARGROUP INC21997–2013
KOCI CHAD P22013–2015
Locations
LocationPatentsSpan
Helotes, Texas, US212005–2016
San Antonio, Texas, US132001–2009
Eagle, WI, US51997–2013
London, GB22012
Norristown, Pennsylvania, US11979