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Dorf Ketal Chemicals (india) Private Limited

USPTO Granted Patents = 24

EPO Patents = 1

Trademarks = 10

Forward Citations = 48

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7 inventors (with patents filed for the assignee):

Mahesh Subramaniyam (22 out of 37 patents)

Shivank Menon (2 out of 2 patents)

Prasanta Barua (2 out of 2 patents)

4. Suhas A Chavan (2 out of 2 patents)

5. Mahesh Subramaniyam (2 out of 2 patents)

6. Michael Michalczyk (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 12312541 - Coke reducing additive composition and method of use thereof (2025-05-27),

2. 11987755 - Additive composition for reducing coke and increasing distillate during pyrolysis of a feedstock, and method of use thereof (2024-05-21),

3. 11617970 - Demulsification additive composition, use thereof, and method of demulsification (2023-04-04),

4. 11377600 - Hydrogen sulfide scavenging additive composition and method of use thereof (2022-07-05),

5. 11242303 - Composition for control and inhibition of polymerization of monomers, and method of use and preparation thereof (2022-02-08),

6. 11083981 - Demulsification additive composition, use thereof, and method of demulsification (2021-08-10),

7. 10815435 - Additive composition for demulsification of water-in-oil emulsion, and method of use thereof, and method of demulsification (2020-10-27),

8. 10787619 - Effective novel polymeric additive for inhibiting napthenic acid corrosion and method of using the same (2020-09-29),

9. 10711204 - Nitrogen based hydrogen sulfide scavengers and method of use thereof (2020-07-14),

10. 10617994 - Amine based hydrogen sulfide scavenging additive compositions of copper salts, and medium comprising the same (2020-04-14),

11. 10493396 - Hydrogen sulfide scavenging additive compositions, and medium comprising the same (2019-12-03),

12. 10450246 - Compositions for control and inhibition of polymerization of vinyl aromatic monomers, and methods of use thereof (2019-10-22),

13. 10316203 - Adhesion promoting system, and ink compositions thereof (2019-06-11),

14. 9777230 - Effective novel non-polymeric and non-fouling additive for inhibiting high-temperature naphthenic acid corrosion and method of using the same (2017-10-03),

15. 9725649 - Amine and nitroxide based additive composition for control and inhibition of polymerization of styrene, and method of use thereof (2017-08-08),

Dorf Ketal Chemicals (India) Private Limited is a leading global specialty chemical manufacturer and supplier headquartered in Mumbai, India. With over 40 years of experience, the company offers a wide range of chemicals and solutions for various industries including oil and gas, petrochemicals, refineries, pharmaceuticals, agriculture, and water treatment. Dorf Ketal is known for its innovative and sustainable solutions that enhance performance, efficiency, and profitability for its customers. The company operates globally with manufacturing facilities, research and development centers, and sales offices in several countries.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

24 Patents

#14 in Mumbai

#80 in India

#25,825 in the World

Dorf Ketal Chemicals (india) Private Limited

Forward Citations = 48

7 inventors:

Mahesh Subramaniyam (22 out of 37 patents)

Shivank Menon (2 out of 2 patents)

Prasanta Barua (2 out of 2 patents)

4. Suhas A Chavan (2 out of 2 patents)

5. Mahesh Subramaniyam (2 out of 2 patents)

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