Forward Citations = 64

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3 inventors (with patents filed for the assignee):

Richard H O'Blasny (5 out of 5 patents)

Laird C Fletcher (4 out of 4 patents)

Harold J Beard (2 out of 17 patents)

6 patents: Sort by Forward Citations

1. 4504383 - Rerefining used oil with borohydride reducing agents (1985-03-12),

2. 4439311 - Rerefining used lubricating oil with hydride reducing agents (1984-03-27),

3. 4399025 - Solvent extraction process for rerefining used lubricating oil (1983-08-16),

4. 4360420 - Distillation and solvent extraction process for rerefining used (1982-11-23),

5. 4342645 - Method of rerefining used lubricating oil (1982-08-03),

6. 4302325 - Solvent extraction process for rerefining used lubricating oil (1981-11-24),

Delta Central Refining, Inc. is a leading oil refining company that specializes in processing crude oil into high-quality fuel and chemical products. With state-of-the-art facilities and a dedicated team of professionals, we strive to deliver top-tier products to our customers while maintaining a strong commitment to safety, sustainability, and efficiency.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

6 Patents

#1 in Natchitoches, LA

#149 in Louisiana

#43,803 in US

Natchitoches, LA, United States of America

Delta Central Refining, Inc.

Forward Citations = 64

3 inventors:

Richard H O'Blasny (5 out of 5 patents)

Laird C Fletcher (4 out of 4 patents)

Harold J Beard (2 out of 17 patents)

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