S. Ananda Weerawarna

Person

Seattle, WA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fibrillated blend of lyocell low DP pulp
- Patent number 9,845,575
- Issue date Dec 19, 2017
- International Paper Company
- John A. Westland
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Multi-stage catalytic carboxylation of mercerized cellulose fibers
- Patent number 9,328,459
- Issue date May 3, 2016
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Internally curing cement based materials
- Patent number 9,056,792
- Issue date Jun 16, 2015
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Fibrillated blend of lyocell and cellulosic low DP pulp
- Patent number 8,894,812
- Issue date Nov 25, 2014
- Weyerhaeuser NR Company
- John A. Westland
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fiber for fiber cement and resulting product
- Patent number 8,791,178
- Issue date Jul 29, 2014
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for making biodegradable superabsorbent particles
- Patent number 8,641,869
- Issue date Feb 4, 2014
- Weyerhaeuser NR Company
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Catalytic carboxylation of cellulose fibers in a continuous process...
- Patent number 8,641,863
- Issue date Feb 4, 2014
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fiber for fiber cement and resulting product
- Patent number 8,461,233
- Issue date Jun 11, 2013
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Biodegradable superabsorbent particles
- Patent number 8,101,543
- Issue date Jan 24, 2012
- Weyerhaeuser NR Company
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Fibers having biodegradable superabsorbent particles attached thereto
- Patent number 8,084,391
- Issue date Dec 27, 2011
- Weyerhaeuser NR Company
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for making biodegradable superabsorbent particles
- Patent number 7,959,762
- Issue date Jun 14, 2011
- Weyerhaeuser NR Company
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for making fiber having biodegradable superabsorbent particl...
- Patent number 7,833,384
- Issue date Nov 16, 2010
- Weyerhaeuser NR Company
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Superabsorbent particles containing carboxyalkyl cellulose and temp...
- Patent number 7,785,710
- Issue date Aug 31, 2010
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fibrous blend and method of making
- Patent number 7,749,317
- Issue date Jul 6, 2010
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods for the preparation of mixed polymer superabsorbent fibers...
- Patent number 7,717,995
- Issue date May 18, 2010
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Methods for the preparation of superabsorbent particles containing...
- Patent number 7,645,806
- Issue date Jan 12, 2010
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Methods for the preparation of fibrous superabsorbent composite con...
- Patent number 7,625,463
- Issue date Dec 1, 2009
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Crosslinked carboxyalkyl cellulose fibers having permanent and non-...
- Patent number 7,608,167
- Issue date Oct 27, 2009
- Weyerhaeuser NR Company
- Mengkui Luo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods for the preparation of crosslinked carboxyalkyl cellulose f...
- Patent number 7,604,714
- Issue date Oct 20, 2009
- Weyerhaeuser NR Company
- Mengkui Luo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fibrous blend and methods of preparation
- Patent number 7,591,891
- Issue date Sep 22, 2009
- Weyerhaeuser NR Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for making carboxyalkyl cellulose
- Patent number 7,541,396
- Issue date Jun 2, 2009
- Weyerhaeuser NR Company
- Mengkui Luo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Mixed polymer superabsorbent fibers
- Patent number 7,455,902
- Issue date Nov 25, 2008
- Weyerhaeuser Company
- S. Ananda Weerawarna
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Crosslinked mixed carboxylated polymer network
- Patent number 7,393,905
- Issue date Jul 1, 2008
- Weyerhaeuser Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Mixed polymer network
- Patent number 7,300,965
- Issue date Nov 27, 2007
- Weyerhaeuser Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of crosslinking a mixture of carboxylated polymers using a t...
- Patent number 7,241,836
- Issue date Jul 10, 2007
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of crosslinking a carboxylated polymer using a triazine cros...
- Patent number 7,230,049
- Issue date Jun 12, 2007
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hypochlorite free method for preparation of stable carboxylated car...
- Patent number 7,135,557
- Issue date Nov 14, 2006
- Weyerhaeuser Company
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hypochlorite free method for preparation of stable carboxylated car...
- Patent number 7,109,325
- Issue date Sep 19, 2006
- Weyerhaeuser Company
- Joseph Lincoln Komen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Apparatus for making carboxylated pulp fibers
- Patent number 7,001,483
- Issue date Feb 21, 2006
- Weyerhaeuser Company
- David E. Severeid
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Hypochlorite free method for preparation of stable carboxylated car...
- Patent number 6,919,447
- Issue date Jul 19, 2005
- Weyerhaeuser Company
- Joseph Lincoln Komen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
FIBRILLATED BLEND OF LYOCELL LOW DP PULP
- Publication number 20180105985
- Publication date Apr 19, 2018
- International Paper Company
- John A. Westland
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-STAGE CATALYTIC CARBOXYLATION OF MERCERIZED CELLULOSE FIBERS
- Publication number 20140290882
- Publication date Oct 2, 2014
- WEYERHAEUSER NR COMPANY
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FIBER FOR FIBER CEMENT AND RESULTING PRODUCT
- Publication number 20130338269
- Publication date Dec 19, 2013
- S. Ananda Weerawarna
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
CATALYTIC CARBOXYLATION OF CELLULOSE FIBERS IN A CONTINUOUS PROCES...
- Publication number 20130081768
- Publication date Apr 4, 2013
- WEYERHAEUSER NR COMPANY
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Internally curing cement based materials
- Publication number 20130000523
- Publication date Jan 3, 2013
- WEYERHAEUSER NR COMPANY
- S. Ananda Weerawarna
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Fiber for Fiber Cement and Resulting Product
- Publication number 20130005859
- Publication date Jan 3, 2013
- WEYERHAEUSER NR COMPANY
- S. Ananda Weerawarna
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
FIBRILLATED BLEND OF LYOCELL AND CELLULOSIC LOW DP PULP
- Publication number 20120285640
- Publication date Nov 15, 2012
- WEYERHAEUSER NR COMPANY
- John A. Westland
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
FIBRILLATED BLEND OF LYOCELL LOW DP PULP
- Publication number 20100288456
- Publication date Nov 18, 2010
- WEYERHAEUSER NR COMPANY
- John A. Westland
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR MAKING BIODEGRADABLE SUPERABSORBENT PARTICLES
- Publication number 20090321029
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Biodegradable Superabsorbent Particles
- Publication number 20090325799
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Method for Making Fiber Having Biodegradable Superabsorbent Particl...
- Publication number 20090321030
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Biodegradable Superabsorbent Particles
- Publication number 20090325797
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Fibers Having Biodegradable Superabsorbent Particles Attached Thereto
- Publication number 20090325800
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Biodegradable Superabsorbent Particles Containing Cellulose Fiber
- Publication number 20090326180
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method for Making Biodegradable Superabsorbent Particles
- Publication number 20090324731
- Publication date Dec 31, 2009
- Weyerhaeuser Co.
- S Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Method of making a mixed polymer composite fiber and cellulose fiber
- Publication number 20080319108
- Publication date Dec 25, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Fibrous blend and method of making
- Publication number 20080314537
- Publication date Dec 25, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Fibrous blend and methods of preparation
- Publication number 20080319107
- Publication date Dec 25, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Mixed polymer composite fiber and cellulose fiber
- Publication number 20080318772
- Publication date Dec 25, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Methods for the preparation crosslinked carboxyalkyl cellulose fibe...
- Publication number 20080147032
- Publication date Jun 19, 2008
- Weyerhaeuser Co.
- Mengkui Luo
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Methods for the preparation of crosslinked carboxyalkyl cellulose f...
- Publication number 20080147033
- Publication date Jun 19, 2008
- Weyerhaeuser Co.
- Mengkui Luo
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Methods for the preparation of mixed polymer superabsorbent fibers...
- Publication number 20080079187
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Mixed polymer superabsorbent fibers containing cellulose
- Publication number 20080082065
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Fibrous superabsorbent composite containing cellulose
- Publication number 20080081165
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Crosslinked carboxyalkyl cellulose fibers having non-permanent and...
- Publication number 20080082066
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- Mengkui Luo
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Cellulose fibers having superabsorbent particles adhered thereto
- Publication number 20080082067
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Absorbent articles comprising carboxyalkyl cellulose fibers having...
- Publication number 20080082068
- Publication date Apr 3, 2008
- Jian Qin
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Mixed polymer superabsorbent fibers
- Publication number 20080081190
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Methods for the preparation of cellulose fibers having superabsorbe...
- Publication number 20080078514
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Methods for the preparation of fibrous superabsorbent composite con...
- Publication number 20080078515
- Publication date Apr 3, 2008
- Weyerhaeuser Co.
- S. Ananda Weerawarna
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

S. Ananda Weerawarna

Person

Patents Grantslast 30 patents

Fibrillated blend of lyocell low DP pulp

Multi-stage catalytic carboxylation of mercerized cellulose fibers

Internally curing cement based materials

Fibrillated blend of lyocell and cellulosic low DP pulp

Fiber for fiber cement and resulting product

Method for making biodegradable superabsorbent particles

Catalytic carboxylation of cellulose fibers in a continuous process...

Fiber for fiber cement and resulting product

Biodegradable superabsorbent particles

Fibers having biodegradable superabsorbent particles attached thereto

Method for making biodegradable superabsorbent particles

Method for making fiber having biodegradable superabsorbent particl...

Superabsorbent particles containing carboxyalkyl cellulose and temp...

Fibrous blend and method of making

Methods for the preparation of mixed polymer superabsorbent fibers...

Methods for the preparation of superabsorbent particles containing...

Methods for the preparation of fibrous superabsorbent composite con...

Crosslinked carboxyalkyl cellulose fibers having permanent and non-...

Methods for the preparation of crosslinked carboxyalkyl cellulose f...

Fibrous blend and methods of preparation

Method for making carboxyalkyl cellulose

Mixed polymer superabsorbent fibers

Crosslinked mixed carboxylated polymer network

Mixed polymer network

Method of crosslinking a mixture of carboxylated polymers using a t...

Method of crosslinking a carboxylated polymer using a triazine cros...

Hypochlorite free method for preparation of stable carboxylated car...

Hypochlorite free method for preparation of stable carboxylated car...

Apparatus for making carboxylated pulp fibers

Hypochlorite free method for preparation of stable carboxylated car...

Patents Applicationslast 30 patents

FIBRILLATED BLEND OF LYOCELL LOW DP PULP

MULTI-STAGE CATALYTIC CARBOXYLATION OF MERCERIZED CELLULOSE FIBERS

FIBER FOR FIBER CEMENT AND RESULTING PRODUCT

CATALYTIC CARBOXYLATION OF CELLULOSE FIBERS IN A CONTINUOUS PROCES...

Internally curing cement based materials

Fiber for Fiber Cement and Resulting Product

FIBRILLATED BLEND OF LYOCELL AND CELLULOSIC LOW DP PULP

FIBRILLATED BLEND OF LYOCELL LOW DP PULP

METHOD FOR MAKING BIODEGRADABLE SUPERABSORBENT PARTICLES

Biodegradable Superabsorbent Particles

Method for Making Fiber Having Biodegradable Superabsorbent Particl...

Biodegradable Superabsorbent Particles

Fibers Having Biodegradable Superabsorbent Particles Attached Thereto

Biodegradable Superabsorbent Particles Containing Cellulose Fiber

Method for Making Biodegradable Superabsorbent Particles

Method of making a mixed polymer composite fiber and cellulose fiber

Fibrous blend and method of making

Fibrous blend and methods of preparation

Mixed polymer composite fiber and cellulose fiber

Methods for the preparation crosslinked carboxyalkyl cellulose fibe...

Methods for the preparation of crosslinked carboxyalkyl cellulose f...

Methods for the preparation of mixed polymer superabsorbent fibers...

Mixed polymer superabsorbent fibers containing cellulose

Fibrous superabsorbent composite containing cellulose

Crosslinked carboxyalkyl cellulose fibers having non-permanent and...

Cellulose fibers having superabsorbent particles adhered thereto

Absorbent articles comprising carboxyalkyl cellulose fibers having...

Mixed polymer superabsorbent fibers

Methods for the preparation of cellulose fibers having superabsorbe...

Methods for the preparation of fibrous superabsorbent composite con...