Charge pump circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 3, 2008
Grant Date -
Aug 10, 2006
app pub date -
Dec 24, 2003
filing date -
Jan 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A charge pump circuit has a voltage increasing stage and a voltage decreasing stage in parallel, and sharing a common input. This shows charge to flow between the stages, so that charge used in the pumping of one stage is recycled to the other stage.
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 | |
---|---|---|
TPO HONG KONG HOLDING LIMITED | PHILIPS ELECTRONICA BUILDING 5 SCIENCE PARK EAST AVENUE SHETIN HONG KONG SAR |
International Classification(s)

- 2003 Application Filing Year
- H02M Class
- 600 Applications Filed
- 246 Patents Issued To-Date
- 41 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ayres, John R A | Reigate, GB | 15 | 233 |
# of filed Patents : 15 Total Citations : 233 | |||
Yamashita, Keitaro | Ashiya, JP | 133 | 1323 |
# of filed Patents : 133 Total Citations : 1323 |
Cited Art Landscape
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Patent Citation Ranking
- 35 Citation Count
- H02M Class
- 83.00 % this patent is cited more than
- 17 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 |
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