USE OF SILICON-CONTAINING PARTICLES FOR PROTECTION FROM UV RADIATION, PROCESS FOR PRODUCTION THEREOF AND FORMULATIONS COMPRISING THEM
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United States of America Patent
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N/A
Issued Date -
Jun 2, 2016
app pub date -
Nov 24, 2015
filing date -
Nov 28, 2014
priority date (Note) -
Published
status (Latency Note)
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Abstract
Silicon-containing particles are used for protection of human cells from electromagnetic radiation in the UV range and optionally in the visible as far as the IR range, where the particles preferably take the form of clusters of primary particles having a particle size in the range from 5 to 100 nm. A particular advantage is the possibility of matching the absorption of the electromagnetic radiation to the wavelength region to be absorbed in a defined manner via the particle size. The silicon-containing particles can be used for biocompatible and biodegradable UV protection in cosmetic or medical formulations, such as preferably a sunscreen, or else in a cosmetic formulation for the UV protection of hair.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
EVONIK DEGUSSA GMBH | RELLINGHAUSER STRASSE 1-11 ESSEN 45128 |
International Classification(s)

- 2015 Application Filing Year
- A61K Class
- 16157 Applications Filed
- 11882 Patents Issued To-Date
- 73.55 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
KROELL, Michael | Linsengericht, DE | 21 | 129 |
# of filed Patents : 21 Total Citations : 129 | |||
LANG, Juergen Erwin | Karlsruhe, DE | 28 | 91 |
# of filed Patents : 28 Total Citations : 91 | |||
UEHLENBRUCK, Goswin | Oberursel, DE | 8 | 9 |
# of filed Patents : 8 Total Citations : 9 |
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Patent Citation Ranking
- 0 Citation Count
- A61K Class
- 0 % this patent is cited more than
- 9 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 2, 2027 |
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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