Company Filing History:

5 out of 2,921

Union Carbide Corporation

patents

3 out of 822

Union Carbide Chemicals & Plastics Technology Corporation

patents

3 out of 138

Union Carbide Chemicals and Plastics Company, Inc.

patents

4. 3 out of 70

First Brands Corporation

where one patent can have more than one assignee

Years Active: 1983-1994

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5308648 - Spray application of plastics additives to polymers (1994-05-03),

2. 5236514 - Purging composition for cleaning thermoplastic processing equipment (1993-08-17),

3. 5135575 - Method of forming stable dispersions of particulate matter (1992-08-04),

4. 5073283 - Antifreeze composition concentrate containing oxyalkylene compound and (1991-12-17),

5. 4938951 - Potentiation of topical compositions wherein a uniform microdispersion (1990-07-03),

6. 4925890 - Process for processing thermoplastic polymers (1990-05-15),

7. 4913743 - Processes for managing keratinous material using glycosaminoglycan and (1990-04-03),

8. 4857593 - Process for processing thermoplastic polymers (1989-08-15),

9. 4767463 - Glycosaminoglycan and cationic polymer combinations (1988-08-30),

10. 4704220 - Oil-in-alcohol microemulsions in antifreeze (1987-11-03),

11. 4684474 - Organophosphate-containing antifreeze with buffer (1987-08-04),

12. 4610222 - Cooling system using an oil-in-alcohol containing consolute antifreeze (1986-09-09),

13. 4605422 - Oil-in-alcohol microemulsion (1986-08-12),

14. 4412921 - Dry, particulate, inorganic ultrafiltration membranes and the production (1983-11-01),

Title: The Innovative Contributions of Pak S Leung

Introduction

Pak S Leung is a notable inventor based in Highland Mills, NY (US), recognized for his significant contributions to the field of polymer technology. With a total of 14 patents to his name, Leung has made strides in developing processes that enhance the application of polymer additives.

Latest Patents

Among his latest patents is the "Spray application of plastics additives to polymers." This innovative process involves applying a polymer additive material to a polymeric substrate through a closed pressurized system. The method includes forming a mixture of a solid polymer additive, a suitable liquid carrier, and a viscosity-reducing material, which is then sprayed onto the substrate. Another notable patent is the "Purging composition for cleaning thermoplastic processing equipment." This composition is designed to effectively clean thermoplastic processing equipment, comprising specific components in precise concentrations.

Career Highlights

Throughout his career, Pak S Leung has worked with prominent companies, including Union Carbide Corporation and Union Carbide Chemicals & Plastics Technology Corporation. His experience in these organizations has contributed to his expertise in polymer technology and innovation.

Collaborations

Leung has collaborated with several professionals in his field, including Errol D Goddard and George L Brode. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Pak S Leung's contributions to polymer technology through his patents and collaborations highlight his role as an influential inventor. His innovative processes continue to impact the industry positively.

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