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For the Inventor, By the Inventor

Bedford Park, IL, United States of America

Donlar Corporation


USPTO Granted Patents = 47

% Expired Patents = 2.1


Trademarks = 1

Forward Citations = 663

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20 inventors (with patents filed for the assignee):

goldMedal Larry P Koskan (21 out of 31 patents)

silverMedal Robert J Ross (17 out of 23 patents)

bronzeMedal Abdul R Meah (16 out of 22 patents)

4.  Jacob Mazo (11 out of 38 patents)

5.  Kim C Low (10 out of 10 patents)

6.  Grigory Ya Mazo (9 out of 9 patents)

7.  James F Kneller (7 out of 26 patents)

8.  J Larry Sanders (7 out of 7 patents)

9.  Daniel A Batzel (6 out of 9 patents)

10.  Anne M Atencio (5 out of 5 patents)

11.  Lai-Duien Grace Fan (4 out of 8 patents)

12.  Barney Vallino (4 out of 4 patents)

13.  Joseph C Fan (3 out of 6 patents)

14.  Alan M Kinnersley (3 out of 9 patents)

15.  David J Strom (2 out of 2 patents)


Core Competencies:
Metal Corrosion Inhibition
Succinimide Copolymers
Superabsorbing Polymeric Networks
Polyaspartic Acid
Plant Productivity Enhancement
Hydroponic Plant Growth
Insecticide Combinations
Herbicide Effectiveness
Nutrient Uptake Efficiency
Crosslinked Polyaspartates
Polysuccinimide Production
Fertilizer Uptake

47 patents:

1. 6620338 - Composition for inhibition of metal corrosion (2003-09-16),
2. 6447717 - Composition and method for inhibition of metal corrosion (2002-09-10),
3. 6399715 - Solution polymerizing aspartic acid and monomer to form succinimide copolymer (2002-06-04),
4. 6277302 - Inhibition of metal corrosion (2001-08-21),
5. 6197897 - Production of succinimide copolymers in cyclic carbonate solvent (2001-03-06),
6. 6005069 - Production of polysuccinimide and derivatives thereof in a (1999-12-21),
7. 5998492 - Super-absorbing polymeric networks (1999-12-07),
8. 5998491 - Super-absorbing polymeric networks (1999-12-07),
9. 5939522 - Production of polysuccinimide and polyaspartate in thioether solvents (1999-08-17),
10. 5939518 - Polyaspartate (salt) by polymerizing aspartic acid and hydrolyzing (1999-08-17),
11. 5939517 - Production of succinimide copolymers in cyclic carbonate solvent (1999-08-17),
12. 5935909 - Treatment of tree seedlings to enhance survival rate (1999-08-10),
13. 5907057 - Production of D,L-aspartic acid (1999-05-25),
14. 5872285 - Production of D,L-aspartic acid (1999-02-16),
15. 5861356 - Method and composition for enhanced plant productivity comprising (1999-01-19),
Donlar Corporation is a global leader in manufacturing and supplying industrial equipment. With a strong focus on innovation and quality, we provide a wide range of reliable and efficient solutions for various industries including construction, mining, and agriculture. Our products are known for their durability, performance, and cost-effectiveness. Visit our website for more information and to explore our comprehensive product portfolio.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Donlar Corporation
47 Patents

#1 in Bedford Park, IL

#405 in Illinois

#7,417 in US

#14,774 in the World

Bedford Park, IL (US)
Bedford Park, IL, United States of America

Donlar Corporation

Forward Citations = 663

20 inventors:

goldMedal Larry P Koskan (21 out of 31 patents)

silverMedal Robert J Ross (17 out of 23 patents)

bronzeMedal Abdul R Meah (16 out of 22 patents)

4.  Jacob Mazo (11 out of 38 patents)

5.  Kim C Low (10 out of 10 patents)

Please report any incorrect information to [email protected]
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