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For the Inventor, By the Inventor

Montreal, Canada

Domtar Inc.


USPTO Granted Patents = 120

% Expired Patents = 1.7


Trademarks = 19

Forward Citations = 1,757

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93 inventors (with patents filed for the assignee):

goldMedal Xuan T Nguyen (8 out of 9 patents)

silverMedal Joseph A Lapointe (8 out of 9 patents)

bronzeMedal Manssur Yalpani (7 out of 7 patents)

4.  Alkibiadis Karnis (6 out of 6 patents)

5.  Neil G Richardson (6 out of 6 patents)

6.  Samuel Cukier (6 out of 6 patents)

7.  Magdy M Abdel-Malik (5 out of 5 patents)

8.  John M Lucas (5 out of 12 patents)

9.  Serge Gracovetsky (3 out of 10 patents)

10.  John R Wood (3 out of 3 patents)

11.  George H Tomlinson, Ii (3 out of 3 patents)

12.  Harold Freeburn (2 out of 2 patents)

13.  Leon Magdzinski (2 out of 2 patents)

14.  Dean Mason (2 out of 2 patents)

15.  Terrence E Peel (2 out of 2 patents)


Core Competencies:
Corrosion Inhibitors
Recycling Processes
Gypsum Board
Cellulosic Materials
Oxygen Delignification
Wood Treatment
Biological Treatment
Deicing Products
Polycondensates
Supercritical Fluid Extraction
Mechanical Pulps
Fluidized Bed Processes

120 patents:

1. 6596197 - Potassium monofluorophosphate as a corrosion inhibitor (2003-07-22),
2. 6461475 - Base sheet for wallcoverings (2002-10-08),
3. 6440269 - Base sheet for wallcoverings (2002-08-27),
4. 5938036 - Assembly of packaged reams and method therefor (1999-08-17),
5. 5886903 - Method and knowledge-based system for diagnosis in biological treatment (1999-03-23),
6. 5716528 - Peroxide water treatment process (1998-02-10),
7. 5647191 - Assembly of packaged reams and method therefor (1997-07-15),
8. 5486268 - Oxygen delignification of old corrugated containers (1996-01-23),
9. 5449200 - Security paper with color mark (1995-09-12),
10. 5350493 - Oxygen delignification of old corrugated containers (1994-09-27),
11. 5314755 - Method to reduce scaling due to freezing and thawing in concrete (1994-05-24),
12. 5307928 - Six piece appliance package (1994-05-03),
13. 5302244 - Oxygen delignification of waste cellulosic paper products (1994-04-12),
14. 5198052 - Method of reshaping a gypsum board core and products made by same (1993-03-30),
15. 5147503 - Recycling waste cellulosic material with sodium sulphide digestion (1992-09-15),
Domtar Inc., headquartered in Montreal, Canada, specializes in the development and manufacturing of innovative solutions in the field of corrosion inhibition. The company focuses on a range of core technologies including corrosion inhibitors, recycling processes, and the production of gypsum board and cellulosic materials. Domtar is also engaged in advanced wood treatment and biological treatment processes, as well as the formulation of deicing products, contributing to sustainable practices in various industries.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Domtar Inc.
120 Patents

#7 in Montreal

#106 in Canada

#6,637 in the World

Montreal, CA
Montreal, Canada

Domtar Inc.

Forward Citations = 1,757

93 inventors:

goldMedal Xuan T Nguyen (8 out of 9 patents)

silverMedal Joseph A Lapointe (8 out of 9 patents)

bronzeMedal Manssur Yalpani (7 out of 7 patents)

4.  Alkibiadis Karnis (6 out of 6 patents)

5.  Neil G Richardson (6 out of 6 patents)

Please report any incorrect information to [email protected]
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