US Patent No: 4,495,313

Number of patents in Portfolio can not be more than 2000

Preparation of hydrogel for soft contact lens with water displaceable boric acid ester

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

Soft contact lenses are made by polymerizing a substantially anhydrous polymerization mixture containing a polymerizable acrylic or methacrylic monomer, and a water displaceable ester of boric acid and a compound containing 3 or more hydroxyl groups so as to form a hydrophilic polymer containing at least 30% of said boric acid ester. In a preferred embodiment, the polymerizable is effected in a mould cavity where the contact between a sharp circular edge in one mould part and a spherical surface in the other mould part defines the edge of the lens and the distance between the two mould surfaces outside the sharp edge increases in all radial directions away from the center.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
JOHNSON & JOHNSON VISION PRODUCTS, INC.JACKSONVILLE, FL273
BAY, MICHAEL, LLYNGBY HOVEDGADE 57 D, DK-2800 KGS. LYNGBYCOPEHAGEN, DK1

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Larsen, Hans-Ole Farum, DK 6 545

Cited Art

Patent Info (Count) # Cites Year
 
KYOWA GAS CHEMICAL INDUSTRY CO., LTD. (1)
4,275,174 Neutron shielding polymer composition and a process for producing the same 5 1979
 
WJ ACQUISITION CORP. (1)
4,405,773 Hydrophylic contact lenses and methods for making same 32 1982

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
JOHNSON & JOHNSON VISION CARE, INC. (50)
6,752,581 Apparatus for removing and transporting articles from molds 2 1997
6,176,669 Apparatus for removing and transporting articles from molds 4 1999
6,186,736 Method for removing and transporting articles from molds 8 1999
6,511,617 Consolidated contact lens molding 18 1999
RE37558 Packaging arrangement for contact lenses 13 1999
6,367,929 Hydrogel with internal wetting agent 61 2000
6,610,220 Process of manufacturing contact lenses with measured exposure to oxygen 2 2000
6,577,387 Inspection of ophthalmic lenses using absorption 31 2000
6,695,988 Method and apparatus for washing or hydration of ophthalmic devices 6 2001
6,663,801 Silicon carbide IR-emitter heating device and method for demolding lenses 1 2001
7,008,570 Method and apparatus for contact lens mold assembly 2 2001
6,836,692 System and method for intelligent lens transfer 3 2001
6,849,671 Contact lenses 25 2001
6,822,016 Biomedical devices containing internal wetting agents 60 2002
7,368,127 Biomedical devices with peptide containing coatings 1 2002
6,846,892 Low polydispersity poly-HEMA compositions 12 2003
7,001,138 Split collar for mechanical arm connection 0 2003
7,214,809 (Meth)acrylamide monomers containing hydroxy and silicone functionalities 4 2004
8,158,695 Forming clear, wettable silicone hydrogel articles without surface treatments 0 2004
8,097,565 Silicone hydrogels having consistent concentrations of multi-functional polysiloxanes 0 2004
7,666,921 Biomedical devices containing internal wetting agents 3 2004
7,879,288 Method and apparatus of sterilization using monochromatic UV radiation source 1 2004
7,249,848 Wettable hydrogels comprising reactive, hydrophilic, polymeric internal wetting agents 7 2004
7,247,692 Biomedical devices containing amphiphilic block copolymers 7 2004
7,521,488 Contact lenses 2 2005
7,461,937 Soft contact lenses displaying superior on-eye comfort 9 2005
7,786,185 Wettable hydrogels comprising acyclic polyamides 0 2005
7,213,382 Heat seal apparatus for lens packages 0 2005
7,649,058 Biomedical devices containing internal wetting agents 7 2005
7,841,716 Comfortable ophthalmic device and methods of its production 0 2006
8,414,804 Process for making ophthalmic lenses 0 2006
7,396,890 (Meth)acrylamide monomers containing hydroxy and silicone functionalities 1 2007
7,691,916 Biomedical devices containing internal wetting agents 3 2007
7,960,465 Antimicrobial lenses, processes to prepare them and methods of their use 0 2007
8,273,802 Wettable hydrogels comprising reactive, hydrophilic, polymeric internal wetting agents 0 2007
7,816,460 Low polydispersity poly-HEMA compositions 0 2007
7,731,148 High optical quality molds for use in contact lens production 0 2008
8,272,735 Lens design simplification process 0 2008
7,825,170 Contact lenses 1 2008
7,833,443 Molds for producing contact lenses 2 2008
8,168,720 Biomedical devices containing internal wetting agents 0 2009
8,022,158 Wettable hydrogels comprising acyclic polyamides 0 2010
7,956,131 Lactam polymer derivatives 0 2010
8,292,256 Molds for producing contact lenses 0 2010
8,399,538 Contact lenses 0 2010
8,021,608 Method and apparatus of sterilization using monochromatic UV radiation source 2 2010
8,361,355 Preparation of antimicrobial contact lenses with reduced haze using swelling agents 0 2011
8,222,353 Wettable hydrogels comprising acyclic polyamides 0 2011
8,318,089 Method and apparatus of sterilization using monochromic UV radiation source 0 2011
8,431,669 Biomedical devices containing internal wetting agents 0 2012
 
JOHNSON & JOHNSON VISION PRODUCTS, INC. (40)
4,680,336 Method of forming shaped hydrogel articles 111 1985
4,889,664 Method of forming shaped hydrogel articles including contact lenses 176 1988
5,039,459 Method of forming shaped hydrogel articles including contact lenses 110 1989
5,080,839 Process for hydrating soft contact lenses 99 1990
5,238,388 Ophthalmic lens mold seal 15 1991
5,326,505 Method for treating an ophthalmic lens mold 16 1992
5,850,107 Mold separation method and apparatus 22 1994
5,804,107 Consolidated contact lens molding 29 1994
5,697,495 Packaging arrangement for contact lenses 28 1994
5,656,208 Method and apparatus for contact lens mold filling and assembly 6 1994
5,607,642 Interactive control system for packaging control of contact lenses 9 1994
5,597,519 Ultraviolet cycling oven for polymerization of contact lenses 53 1994
5,528,878 Automated apparatus and method for consolidating products for packaging 16 1994
5,461,570 Computer system for quality control correlations 82 1994
5,685,420 Composite packaging arrangement for contact lenses 31 1995
5,696,686 Computer system for quality control correlations 25 1995
5,658,602 Method and apparatus for contact lens mold filling and assembly 18 1995
5,681,871 Method for preparing ultraviolet radiation absorbing contact lenses 91 1995
5,540,543 Apparatus for removing and transporting articles from molds 5 1995
RE36302 Chamber for hydrating contact lenses 4 1995
5,723,131 Contact lens containing a leachable absorbed material 7 1995
5,814,134 Apparatus and method for degassing deionized water for inspection and packaging 20 1996
5,823,327 Packaging arrangement for contact lenses 26 1996
5,744,357 Contact lens production line pallet system 13 1996
5,681,138 Apparatus for removing and transporting articles from molds 14 1996
5,891,371 Interactive control method for packaging control of time sensitive products 4 1997
5,753,150 Low oxygen molding of soft contact lenses 33 1997
5,861,114 Method of manufacturing complex optical designs in soft contact lenses 46 1997
6,020,445 Silicone hydrogel polymers 49 1997
5,914,074 Mold clamping and precure of a polymerizable hydrogel 61 1997
5,935,492 Method and apparatus for demolding ophthalmic contact lenses 14 1997
6,039,899 Consolidated contact lens molding 34 1998
5,998,498 Soft contact lenses 72 1998
5,962,548 Silicone hydrogel polymers 56 1998
5,983,608 Packaging method for contact lenses 16 1998
6,180,032 Apparatus and method for removing and transporting articles from molds 12 1998
6,494,021 Contact lens transfer and material removal system 4 1999
6,207,086 Method and apparatus for washing or hydration of ophthalmic devices 11 1999
6,592,816 Sterilization system 12 1999
6,077,031 Method for removing and transporting articles from molds 2 1999
 
BAUSCH & LOMB INCORPORATED (5)
5,260,000 Process for making silicone containing hydrogel lenses 131 1992
5,260,001 Spincasting process for producing a series of contact lenses having desired shapes 13 1992
8,119,753 Silicone hydrogels with amino surface groups 0 2008
8,070,475 Casting mold for forming a biomedical device including an ophthalmic device 0 2008
7,850,878 Method of forming a biomedical device including an ophthalmic device 2 2008
 
HYDROGEL VISION CORPORATION (5)
5,532,289 Contact lens having improved dimensional stability 17 1995
6,011,081 Contact lens having improved dimensional stability 8 1996
6,265,465 Contact lens having improved dimensional stability 12 1999
6,566,417 Contact lens having improved dimensional stability 1 2001
6,555,598 Contact lens having improved dimensional stability 1 2001
 
NOVARTIS AG (4)
5,922,249 Ophthalmic lens production process 12 1997
6,047,082 Automatic lens inspection system 24 1997
6,866,240 16-cavity mold clamp fixture 0 2002
8,163,206 Method for making silicone hydrogel contact lenses 0 2009
 
COOPERVISION INTERNATIONAL HOLDING COMPANY, LP (3)
7,816,455 Hydrogel contact lenses and package systems and production methods for same 0 2007
7,431,152 Hydrogel contact lenses and package systems and production methods for same 1 2007
8,313,675 Demolding of ophthalmic lenses during the manufacture thereof 0 2010
 
ALCON LABORATORIES, INC. (1)
4,546,123 Polymer hydrogels adapted for use as soft contact lenses, and method of preparing same 25 1984
 
CASSELLA AKTIENGESELLSCHAFT (1)
4,794,166 Process for the preparation of a hydrogel which is largely free from monomers 10 1987
 
COASTVISION, A CORP. OF CA (1)
4,931,228 Method of manufacturing soft contact lens buttons 1 1989
 
J&J VISION CARE, INC. (1)
7,052,131 Biomedical devices containing internal wetting agents 39 2002
 
KABUSHIKI KAISHA SEED (1)
5,061,057 Porous contact lens and method for making it 2 1989
 
KABUSHIKI KAISHA TOKYO CONTACT LENS KENKYUSHO (1)
4,904,708 Method of manufacturing soft contact lens material 2 1988
 
LYCRON ARRAKIS LLC (1)
6,201,089 Macroporous hyperhydroxy polymer and articles made therefrom 10 1998
 
PHILIP S. JOHNSON;JOHNSON & JOHNSON (1)
6,977,051 Method and apparatus for contact lens mold assembly 2 2002
 
SOLA INTERNATIONAL HOLDINGS LTD. (1)
4,761,069 Contact lens and method of molding 39 1986
 
SYNERGEYES, INC. (1)
7,828,432 Hybrid contact lenses prepared with expansion controlled polymeric materials 0 2007
 
TRANSITIONS OPTICAL, INC. (1)
7,584,630 Photochromic ocular devices 0 2005
 
VISION PRODUCTS, INC. (1)
5,578,331 Automated apparatus for preparing contact lenses for inspection and packaging 45 1994
 
WJ ACQUISITION CORP. (1)
5,271,874 Method for molding a hydrophilic contact lens 12 1992
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
4,808,709 Matrix polymer and its preparation 4 1986
5,545,366 Molding arrangement to achieve short mold cycle time and method of molding 23 1994