Phase varying apparatus for engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 9, 2011
Grant Date -
Jan 7, 2010
app pub date -
Dec 11, 2006
filing date -
Dec 11, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Heat generation is not caused by friction in a phase varying apparatus for use with a vehicle engine.) and the outer cylinder part connected to the intermediate member in a spline manner are rotated relative to each other.
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 | |
---|---|---|
NITTAN VALVE CO LTD | 518 SOYA HADANO-SHI KANAGAWA 257-0031 |
International Classification(s)

- 2006 Application Filing Year
- F01L Class
- 448 Applications Filed
- 236 Patents Issued To-Date
- 52.68 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Homma, Koichi | Kanagawa, JP | 37 | 1038 |
# of filed Patents : 37 Total Citations : 1038 | |||
Ishihara, Naoya | Kanagawa, JP | 3 | 9 |
# of filed Patents : 3 Total Citations : 9 | |||
Shiino, Minoru | Kanagawa, JP | 4 | 13 |
# of filed Patents : 4 Total Citations : 13 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- F01L Class
- 0 % this patent is cited more than
- 14 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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Jul 12, 2012 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Jul 10, 2008 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jan 18, 2005 | I | Issuance | |
Dec 30, 2004 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 03, 2004 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jan 08, 2004 | P | Published | |
Jun 18, 2003 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VIEGENER, WALTER;NAGELER, JURGEN;BAUER, WALTER;REEL/FRAME:014197/0863;SIGNING DATES FROM 20021115 TO 20021125 Owner name: WITZIG & FRANK GMBH, GERMANY |
Dec 20, 2002 | F | Filing | |
Jun 30, 2000 | PD | Priority Date |

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