POLYISOPRENYLATED TETRACYCLIC XANTHONE WITH ANTICANCER ACTIVITY
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 10, 2014
app pub date -
Jan 8, 2014
filing date -
Jan 10, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A novel polyisoprenylated tetracyclic xanthone, named garciesculentone B, isolated from Garcinia esculenta Y. H. Li is disclosed in the present invention. This compound is shown to have significant cytotoxicity against various cancer cells. In addition, garciesculentone B is shown to have antimigration effect on various cancer cells such as human esophageal carcinoma cell. The experimental data supports that this compound is useful for developing into an anticancer drug.
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 | |
---|---|---|
HONG KONG BAPTIST UNIVERSITY | KOWLOON TONG KOWLOON HONG KONG |
International Classification(s)

- 2014 Application Filing Year
- C07D Class
- 5203 Applications Filed
- 4627 Patents Issued To-Date
- 88.93 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
BIAN, Zhaoxiang | Hong Kong, HK | 41 | 7 |
# of filed Patents : 41 Total Citations : 7 | |||
CHAN, Albert Sun Chi | Hong Kong, HK | 20 | 12 |
# of filed Patents : 20 Total Citations : 12 | |||
CHEN, Kaixian | Hong Kong, HK | 52 | 28 |
# of filed Patents : 52 Total Citations : 28 | |||
CHEN, Shilin | Hong Kong, HK | 150 | 1315 |
# of filed Patents : 150 Total Citations : 1315 | |||
LU, Aiping | Hong Kong, HK | 27 | 7 |
# of filed Patents : 27 Total Citations : 7 | |||
TAN, Hongsheng | Hong Kong, HK | 8 | 1 |
# of filed Patents : 8 Total Citations : 1 | |||
XI, Zhichao | Hong Kong, HK | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 | |||
XU, Hongxi | Hong Kong, HK | 22 | 4 |
# of filed Patents : 22 Total Citations : 4 | |||
YANG, Dajian | Hong Kong, HK | 26 | 4 |
# of filed Patents : 26 Total Citations : 4 | |||
ZHANG, Hong | Hong Kong, HK | 882 | 11808 |
# of filed Patents : 882 Total Citations : 11808 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- C07D Class
- 0 % this patent is cited more than
- 11 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 10, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
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