For the Inventor, By the Inventor

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New York, NY, United States of America

Chem Systems Inc.

USPTO Granted Patents = 19

Forward Citations = 173

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16 inventors (with patents filed for the assignee):

Abraham P Gelbein (7 out of 52 patents)

Martin B Sherwin (6 out of 26 patents)

Robert Hansen (4 out of 6 patents)

4. Jimmy Y Peress (4 out of 4 patents)

5. John A Jung (3 out of 3 patents)

6. David B Blum (2 out of 11 patents)

7. Marvin I Greene (2 out of 5 patents)

8. Arthur M Brownstein (2 out of 2 patents)

9. R Lawrence Mednick (2 out of 2 patents)

10. Kenneth J Gwozdz (1 out of 2 patents)

11. Ramon L Espino (1 out of 1 patent)

12. Thomas S Pletzke (1 out of 1 patent)

13. Marvin I Green (1 out of 1 patent)

14. Marshall E Frank (1 out of 1 patent)

15. I-Der Huang (1 out of 22 patents)

19 patents: Sort by Forward Citations

1. 4639470 - Method for making methanol (1987-01-27),

2. 4585900 - Hydrogenation of carboxylic acid compounds to aldehydes using Cu/YtO as (1986-04-29),

3. 4585899 - Hydrogenation of carboxylic acid compounds to aldehydes using MnO.sub.2 (1986-04-29),

4. 4567204 - Method for making methanol (1986-01-28),

5. 4477594 - Process for the synthesis of aliphatic alcohol-containing mixtures (1984-10-16),

6. 4439309 - Two-stage hydrogen donor solvent cracking process (1984-03-27),

7. 4399295 - Process for preparing oxirane compounds (1983-08-16),

8. 4325803 - Process for hydrogenation/extraction of organics contained in rock (1982-04-20),

9. 4311851 - Preparation of carboxylic acid esters with BF.sub.3 -alcohol complex (1982-01-19),

10. 4262138 - Preparation of carboxylic acid esters with BF.sub.3 complex catalyst (1981-04-14),

11. 4261899 - Phthalic anhydride reaction system (1981-04-14),

12. 4256913 - Preparation of carboxylic acids using a BF.sub.3 catalyst complex (1981-03-17),

13. 4250344 - Cracking process for styrene (1981-02-10),

14. 4158100 - Process for the preparation of .beta.-phenylethyl alcohol via (1979-06-12),

15. 4087623 - Catalyst recovery process (1978-05-02),

Chem Systems Inc. is a leading provider of chemical solutions for a wide range of industries. With a focus on innovation and quality, we offer a comprehensive range of products and services to meet our customers' needs. Our team of experts is dedicated to providing the highest level of service and support to ensure our clients receive the best solutions for their specific requirements.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

19 Patents

#369 in New York, NY

#927 in New York

#16,592 in US

#31,670 in the World

New York, NY, United States of America

Chem Systems Inc.

Forward Citations = 173

16 inventors:

Abraham P Gelbein (7 out of 52 patents)

Martin B Sherwin (6 out of 26 patents)

Robert Hansen (4 out of 6 patents)

4. Jimmy Y Peress (4 out of 4 patents)

5. John A Jung (3 out of 3 patents)

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