Leonard Seidner

Person

Brooklyn, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Multifocal corneal contact lens
- Patent number 5,898,473
- Issue date Apr 27, 1999
- Permeable Technologies, Inc.
- Leonard Seidner
- G02 - OPTICS
Information Patent Grant
Multifocal corneal contact lenses
- Patent number 5,812,235
- Issue date Sep 22, 1998
- Pemrable Technologies Inc.
- Leonard Seidner
- G02 - OPTICS
Information Patent Grant
Multifocal corneal contact lens pair
- Patent number 5,812,236
- Issue date Sep 22, 1998
- Permeable Technologies, Inc.
- Leonard Seidner
- G02 - OPTICS
Information Patent Grant
Multifocal contact lens
- Patent number 5,691,797
- Issue date Nov 25, 1997
- Permeable Technologies, Inc.
- Leonard Seidner
- G02 - OPTICS
Information Patent Grant
Multifocal contact lens
- Patent number 5,619,289
- Issue date Apr 8, 1997
- Permeable Technologies, Inc.
- Leonard Seidner
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Multifocal contact lens and method for preparing
- Patent number 5,526,071
- Issue date Jun 11, 1996
- Permeable Technologies, Inc.
- Leonard Seidner
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Multipocal contact lens and method for preparing
- Patent number 5,493,350
- Issue date Feb 20, 1996
- Leonard Seidner
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Multifocal contact lens and method for preparing
- Patent number 5,404,183
- Issue date Apr 4, 1995
- Leonard Seidner
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Silicone-containing contact lens polymers, oxygen permeable contact...
- Patent number 5,331,067
- Issue date Jul 19, 1994
- Permeable Technologies, Inc.
- Leonard Seidner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Silicone-containing polymers, oxygen permeable hydrophilic contact...
- Patent number 5,314,960
- Issue date May 24, 1994
- Permeable Technologies, Inc.
- Harry J. Spinelli
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Silicone-containing contact lens polymers, oxygen permeable contact...
- Patent number 5,244,981
- Issue date Sep 14, 1993
- Permeable Technologies, Inc.
- Leonard Seidner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Monovision corneal contact lenses
- Patent number 5,024,517
- Issue date Jun 18, 1991
- Leonard Seidner
- G02 - OPTICS
Information Patent Grant
Multifocal corneal contact lenses
- Patent number 5,002,382
- Issue date Mar 26, 1991
- Leonard Seidner
- G02 - OPTICS

Leonard Seidner

Person

Patents Grantslast 30 patents

Multifocal corneal contact lens

Multifocal corneal contact lenses

Multifocal corneal contact lens pair

Multifocal contact lens

Multifocal contact lens

Multifocal contact lens and method for preparing

Multipocal contact lens and method for preparing

Multifocal contact lens and method for preparing

Silicone-containing contact lens polymers, oxygen permeable contact...

Silicone-containing polymers, oxygen permeable hydrophilic contact...

Silicone-containing contact lens polymers, oxygen permeable contact...

Monovision corneal contact lenses

Multifocal corneal contact lenses