Sivaram Krishnan

Person

New Martinsville, WV, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for preparing a photochromic lens
- Patent number 6,367,930
- Issue date Apr 9, 2002
- Bayer Corporation
- Pia I. Santelices
- G02 - OPTICS
Information Patent Grant
Flame retardant polycarbonate blends
- Patent number 6,323,280
- Issue date Nov 27, 2001
- Bayer Corporation
- Winfried G. Paul
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Color-stable polycarbonate composition and articles molded therefrom
- Patent number RE37200
- Issue date May 29, 2001
- Bayer Corporation
- Kevin F. Dunay
- 524 - Synthetic resins or natural rubbers
Information Patent Grant
Polycarbonate composition resistant to gamma radiation
- Patent number 6,197,853
- Issue date Mar 6, 2001
- Bayer Corporation
- Daniel H. Bolton
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate composition resistant to gamma radiation
- Patent number 6,197,854
- Issue date Mar 6, 2001
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame retardant polycarbonate composition
- Patent number 6,180,702
- Issue date Jan 30, 2001
- Bayer Corporation
- James Y. J. Chung
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photochromic polyurethanes
- Patent number 6,166,129
- Issue date Dec 26, 2000
- Bayer Corporation
- James W. Rosthauser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Melt-stable pigmented polycarbonate molding composition
- Patent number 6,153,685
- Issue date Nov 28, 2000
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photochromic polyurethanes
- Patent number 6,107,395
- Issue date Aug 22, 2000
- Bayer Corporation
- James W. Rosthauser
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrolysis-stable polycarbonate molding composition
- Patent number 6,107,375
- Issue date Aug 22, 2000
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic composition suitable for optical applications having...
- Patent number 6,103,777
- Issue date Aug 15, 2000
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate composition useful in optical storage applications
- Patent number 6,069,225
- Issue date May 30, 2000
- Bayer Corporation
- Michael A. Gerace
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photochromic ophthalmic lens
- Patent number 6,065,836
- Issue date May 23, 2000
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate compositions having reduced tendency to splay
- Patent number 6,046,301
- Issue date Apr 4, 2000
- Bayer Corporation
- Daniel H. Bolton
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate compositions having good mold-release properties
- Patent number 6,008,280
- Issue date Dec 28, 1999
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photochromic compositions having improved fade rate
- Patent number 5,998,520
- Issue date Dec 7, 1999
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate compositions having improved release properties
- Patent number 5,705,546
- Issue date Jan 6, 1998
- Bayer Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Gamma radiation-resistant blend of polycarbonate with polyester
- Patent number 5,681,905
- Issue date Oct 28, 1997
- Bayer Corporation
- James P. Mason
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate compositions having mold-release properties
- Patent number 5,596,034
- Issue date Jan 21, 1997
- Bayer Corporation
- Sivaram Krishnan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Low temperature drying of impact modified polycarbonate/polyester c...
- Patent number 5,508,344
- Issue date Apr 16, 1996
- Bayer Corporation
- James P. Mason
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Color-stable polycarbonate composition and articles molded therefrom
- Patent number 5,484,828
- Issue date Jan 16, 1996
- Bayer Corporation
- Kevin F. Dunay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Melt-stable, pigmented polycarbonate composition
- Patent number 5,405,892
- Issue date Apr 11, 1995
- Miles Inc.
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate composition with reduced drip rate on burning
- Patent number 5,250,635
- Issue date Oct 5, 1993
- Miles Inc.
- Douglas G. Powell
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Pigmented polycarbonate composition having high impact strength and...
- Patent number 5,194,495
- Issue date Mar 16, 1993
- Miles Inc.
- Charles E. Lundy
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Gamma radiation resistant polycarbonate compositions
- Patent number 5,187,211
- Issue date Feb 16, 1993
- Miles Inc.
- Charles E. Lundy
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame retardant polycarbonate composition having improved impact st...
- Patent number 5,124,377
- Issue date Jun 23, 1992
- Miles Inc.
- Ronald L. Price
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame retardant polycarbonate composition having improved impact st...
- Patent number 5,120,778
- Issue date Jun 9, 1992
- Miles Inc.
- Ronald L. Price
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame retardant polycarbonate compositions
- Patent number 5,109,045
- Issue date Apr 28, 1992
- Miles Inc.
- Ronald L. Price
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Article molded from a polycarbonate composition having improved pla...
- Patent number 5,087,524
- Issue date Feb 11, 1992
- Mobay Corporation
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ultraviolet stabilizer for polycarbonate compositions
- Patent number 5,086,097
- Issue date Feb 4, 1992
- Mobay Corporation
- Steven A. Jorissen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Tinted plastic articles and thermoplastic composition for its prepa...
- Publication number 20030144419
- Publication date Jul 31, 2003
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Tinted plastic articles and thermoplastic composition for its prepa...
- Publication number 20020107334
- Publication date Aug 8, 2002
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Sivaram Krishnan

Person

Patents Grantslast 30 patents

Process for preparing a photochromic lens

Flame retardant polycarbonate blends

Color-stable polycarbonate composition and articles molded therefrom

Polycarbonate composition resistant to gamma radiation

Polycarbonate composition resistant to gamma radiation

Flame retardant polycarbonate composition

Photochromic polyurethanes

Melt-stable pigmented polycarbonate molding composition

Photochromic polyurethanes

Hydrolysis-stable polycarbonate molding composition

Thermoplastic composition suitable for optical applications having...

Polycarbonate composition useful in optical storage applications

Photochromic ophthalmic lens

Polycarbonate compositions having reduced tendency to splay

Polycarbonate compositions having good mold-release properties

Photochromic compositions having improved fade rate

Polycarbonate compositions having improved release properties

Gamma radiation-resistant blend of polycarbonate with polyester

Polycarbonate compositions having mold-release properties

Low temperature drying of impact modified polycarbonate/polyester c...

Color-stable polycarbonate composition and articles molded therefrom

Melt-stable, pigmented polycarbonate composition

Polycarbonate composition with reduced drip rate on burning

Pigmented polycarbonate composition having high impact strength and...

Gamma radiation resistant polycarbonate compositions

Flame retardant polycarbonate composition having improved impact st...

Flame retardant polycarbonate composition having improved impact st...

Flame retardant polycarbonate compositions

Article molded from a polycarbonate composition having improved pla...

Ultraviolet stabilizer for polycarbonate compositions

Patents Applicationslast 30 patents

Tinted plastic articles and thermoplastic composition for its prepa...

Tinted plastic articles and thermoplastic composition for its prepa...