Rotary internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 10, 2021
Grant Date -
N/A
app pub date -
Dec 3, 2020
filing date -
Dec 3, 2020
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
An internal combustion engine includes one or more pairs of non-meshing, externally timed rotors disposed within a housing in an expander module and a compressor module. Each rotor includes a cylindrical, center main body including a first end, a second end opposite the first end, an elongate portion extending between the ends and a first peripheral surface portion and a second peripheral surface portion and a bore extending through a center of the main body from the first end to the to second end. The rotors each have a groove extending along outer peripheral edge portions of the rotor. A pair of tip seals is disposed in the grooves. A pair of apex seals is disposed on the first peripheral surface portion and the second peripheral surface portion and an axially floating end plate is disposed at an end of the housing.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MARLIN ROTARY PISTON ENGINE LLC | 5409 HUNT CAMP ROAD ROANOKE VA 24018 |
International Classification(s)

- 2020 Application Filing Year
- F04C Class
- 426 Applications Filed
- 308 Patents Issued To-Date
- 72.31 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Thompson, Marlin Harold | Boones Mill, US | 3 | 5 |
# of filed Patents : 3 Total Citations : 5 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F04C Class
- 0 % this patent is cited more than
- 4 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 10, 2025 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 10, 2029 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 10, 2033 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Oct 01, 2020 | P | Published | |
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May 28, 2019 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KRISTLBAUER, JURGEN;REEL/FRAME:059579/0800 Owner name: NESTEC S.A., SWITZERLAND Effective Date: Jan 04, 2018 free format text: MERGER;ASSIGNOR:NESTEC S.A.;REEL/FRAME:059477/0093 Owner name: SOCIETE DES PRODUITS NESTLE S.A., SWITZERLAND Effective Date: May 28, 2019 |
Dec 19, 2018 | F | Filing | |
Dec 20, 2017 | PD | Priority Date |

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