Location History:
- Lakewood, NJ (US) (1989)
- Toms River, NJ (US) (1989 - 1991)
Company Filing History:
Years Active: 1989-1991
Title: The Innovative Contributions of Yunik Chang
Introduction
Yunik Chang is a notable inventor based in Toms River, NJ (US), recognized for his significant contributions to the field of transdermal drug delivery systems. With a total of five patents to his name, Chang has developed innovative solutions that enhance the effectiveness of drug administration through the skin.
Latest Patents
Among his latest patents is a device for administering an active agent to the skin or mucosa. This transdermal drug delivery device features a drug formulation-containing reservoir defined by a backing layer and a drug-permeable membrane layer. It includes a peelable inner liner that underlies the reservoir and a portion of the backing/membrane outwardly of the reservoir periphery. Additionally, there is an adhesive layer that underlies the inner liner and outwardly extending portions of the membrane/backing layers, along with a peelable release liner layer that underlies the adhesive layer. The device is designed with a first permanent heat seal between the backing and the membrane about the perimeter of the reservoir and another concentric peelable heat seal between the membrane and the inner liner. These heat seals and the peelable barrier layer provide barriers that isolate the drug formulation from the adhesive.
Another significant patent involves transdermal drug delivery using a dual permeation enhancer. This system comprises a body that contains supplies of drug and a dual permeation enhancer made of sucrose cocoate and methyl laurate. The basal surface of the system contacts an area of skin and transmits the drug and the dual permeation enhancer for absorption. A method for coadministering a drug and a dual permeation enhancer is also described in this patent.
Career Highlights
Yunik Chang has worked with several companies throughout his career, including Theratech, Inc. and Paco Pharmaceutical Services, Inc. His experience in these organizations has contributed to his expertise in developing advanced drug delivery systems.
Collaborations
Chang has collaborated with notable professionals in the field, including Dinesh C Patel and Charles D Ebert. These collaborations have likely enriched his work and led to further innovations in transdermal drug delivery.
Conclusion
Yunik Chang's contributions to the field of transdermal drug delivery are significant and impactful. His innovative patents and collaborations highlight his dedication to improving drug administration methods. Chang continues to be a prominent figure in the realm of medical
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