Reading lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Feb 9, 2006
app pub date -
Aug 3, 2004
filing date -
Aug 3, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A lens includes a viewing area having a first optical power and a blended area located between the viewing area and an edge of the lens. The blended area includes a plurality of at least partially annular regions. Each of the regions has a different optical power lower than the first optical power of the viewing area. The innermost region includes a highest optical power among the regions, and each subsequent outer region has a gradually lower optical power.
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 | |
---|---|---|
OKIA OPTICAL CO LTD | UNIT D 5/F PHASE 5 HK SPINNERS IND BLDG 760 CHEUNG SHA WAN ROAD KOWLOON |
International Classification(s)

- 2004 Application Filing Year
- G02C Class
- 311 Applications Filed
- 144 Patents Issued To-Date
- 46.31 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lam, Yin Sang | Kowloon, HK | 8 | 86 |
# of filed Patents : 8 Total Citations : 86 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- G02C Class
- 5.45 % this patent is cited more than
- 19 Age
Forward Cite Landscape
- No Forward Cites to Display

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 |
---|---|---|---|
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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