Stoichiometric high-temperature direct-injection compression-ignition engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Apr 6, 2015
filing date -
Apr 7, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust O2 sensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the O2 signals.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY | OFFICE OF THE GENERAL COUNSEL BUILDING 170 THIRD FLOOR MAIN QUAD PO BOX 20386 STANFORD CA 94305-2038 |
International Classification(s)

- 2015 Application Filing Year
- F02M Class
- 1517 Applications Filed
- 1207 Patents Issued To-Date
- 79.57 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Edwards, Christopher F | Sunnyvale, US | 20 | 151 |
# of filed Patents : 20 Total Citations : 151 | |||
Johnson,, IV Bernard H | Stanford, US | 4 | 18 |
# of filed Patents : 4 Total Citations : 18 | |||
Roberts, Gregory B | Stanford, US | 15 | 542 |
# of filed Patents : 15 Total Citations : 542 |
Cited Art Landscape
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Patent Citation Ranking
- 7 Citation Count
- F02M Class
- 21.60 % this patent is cited more than
- 7 Age
Forward Cite Landscape
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Maintenance Fees
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 27, 2025 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Legal Events
Date | Code | Event | Description |
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Oct 05, 2020 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 01, 2020 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Dec 16, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Oct 16, 2015 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Apr 24, 2012 | I | Issuance | |
Apr 04, 2012 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 05, 2011 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Oct 08, 2009 | P | Published | |
May 12, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GAUDREAU, MARC;IBRAHIM, FAISAL;REEL/FRAME:019609/0878 Owner name: FORENSINK CORPORATION INC., CANADA Effective Date: May 12, 2007 |
Nov 17, 2005 | F | Filing | |
Nov 17, 2004 | PD | Priority Date |

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