| Patent Number |
Title Of Patent |
Date Issued |
| 7553880 |
Extended wear ophthalmic lens |
June 30, 2009 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 7538146 |
Extended wear ophthalmic lens |
May 26, 2009 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 7468398 |
Extended wear ophthalmic lens |
December 23, 2008 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 6951894 |
Extended wear ophthalmic lens |
October 4, 2005 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 6333391 |
Aqueous polyimide process |
December 25, 2001 |
| A process for the preparation of an oligomeric polyimide comprises: mixing a tetracarboxylic acid, a dianhydride, a partially hydrolysed dianhydride or a mixture thereof with a diamine in a reaction medium comprising greater than 80% by weight water, and heating mixture in said reaction |
| 6015609 |
Process for manufacture of a porous polymer from a mixture |
January 18, 2000 |
| The present invention is directed to a process for the production of a porous polymer comprising the steps of: i) forming a mixture comprising a polymerizable component and an organic solvent wherein the polymerizable component comprises at least one macromonomer having at least one |
| 5994133 |
Cell growth substrate polymer |
November 30, 1999 |
| Cell growth substrate polymers are described which comprise a macromonomer of the formula (I): Q-(PFPE-L).sub.n-1 -PFPE-Q, wherein n is at least 1.0; each PFPE may be the same or different and is a perfluorinated polyether of the formula (II): --OCH.sub.2 CF.sub.2 O (CF.sub.2 CF.sub.2 O) |
| 5981615 |
Polymerizable siloxane macromonomers |
November 9, 1999 |
| A macromonomer of the formula I is described:wherein n is zero or at least 1.0;Q is a polymerizable group;B may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 8000 and wherein at least one B is a residue from a difunctional polymer or cop |
| 5973089 |
Polymerizable perfluoroalkylether macromer |
October 26, 1999 |
| Macromonomers of the formula I are described:wherein n is at least 1.0;Q is a polymerizable group;B may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 4000 and wherein at least one B is a perfluorinated polyether of formula II;wherein the |
| 5962611 |
Perfluoroalkylether macromer having two polymerizable groups |
October 5, 1999 |
| A macromer of formula (I) is described: Q-(PFPE-L).sub.n-1 -PFPE-Q, wherein n>1.0; PFPE may be the same or different and is a perfluorinated polyether of formula (II): --OCH.sub.2 CF.sub.2 O(CF.sub.2 CF.sub.2 O).sub.x (CF.sub.2 O).sub.y CF.sub.2 CH.sub.2 O--, wherein the CF.sub.2 CF.s |
| 5760100 |
Extended wear ophthalmic lens |
June 2, 1998 |
| An ophthalmic lens suited for extended-wear for periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
