Hydrogel contact lenses of high biocompatibility

United States of America Patent

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May 11, 2004
Grant Date
Dec 5, 2002
app pub date
Nov 9, 2001
filing date
Nov 10, 2000

priority date (Note)
Expired

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Abstract

A hydrogel contact lens is described, the HEMA basic material of which is copolymerized with SPE and amino acids. The water retention capability and the refractive index of the resulting contact lens are similar to those of the natural cornea.

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Patent Owner(s)

WOHIK CONTACT-LINSEN GMBH;WOHLK CONTACT-LINSEN GMBH

International Classification(s)

G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....

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Inventor Name	Address	# of filed Patents	Total Citations
Fromme, Roland	Schonkirchen, DE	2	44
Haase, Lothar	Schonberg, DE	5	269
Herter, K	Bordesholm, DE	1	31
Kollosche, Birgit	Kiel, DE	1	31
Polzhofer, Kurt	Schonkirchen, DE	2	78

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Hydrogel contact lenses of high biocompatibility

Number of patents in Portfolio can not be more than 2000

United States of America Patent

10038110

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PATENT NO	6733123
APP PUB NO	20020180927A1
SERIAL NO	10038110
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
May 11, 2004	US,6733123,B2 US6733123B2	GRANTED PATENT AS SECOND PUBLICATION
December 05, 2002	US,20020180927,A1 US20020180927A1	FIRST PUBLISHED PATENT APPLICATION

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10038110

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