Location History:
- Ontario, CA (1989)
- Markham, CA (1990)
- Scarborough, CA (1988 - 1999)
Company Filing History:
4 out of 2,538 
1 out of 1 
1 out of 832,912 Years Active: 1988-1999
Title: The Innovative Contributions of Betty P. Wen
Introduction
Betty P. Wen is a distinguished inventor based in Scarborough, Canada. She has made significant contributions to the field of pharmaceuticals, particularly in the development of innovative drug delivery systems. With a total of six patents to her name, her work has had a notable impact on the industry.
Latest Patents
One of her latest patents involves antitussive drugs delivered by ion exchange resins. This invention relates to a mixture of coated and non-coated sulfonic acid cation exchange resins, specifically Amberlite IR69, which has been cross-linked with about 8% divinyl benzene. Dextromethorphan is loaded onto these resins, with approximately 30% of the drug/resin complexes coated with a mixture of ethyl cellulose and water-dispersible polymers. The coating level is about 50% w/w drug, and the particle sizes of the coated and uncoated drug/resin complexes range from about 20 to 300 microns and 20 to 250 microns, respectively.
Another significant patent by Wen is for the continuous production of aluminum hydroxycarbonate gel. This process involves the continuous reaction of aluminum salt solution with mixed alkaline carbonate and bicarbonate solution under controlled conditions. The resulting gel is produced within less than six hours, minimizing the formation of undesired non-aluminum cations. The final product is a smooth, creamy gel with improved mouth feel.
Career Highlights
Throughout her career, Betty P. Wen has worked with notable companies, including Warner-Lambert Company. Her innovative approaches and dedication to research have established her as a respected figure in her field.
Collaborations
Wen has collaborated with esteemed colleagues such as Arthur P. Wright and Terry G. Schenck. These partnerships have further enhanced her contributions to the pharmaceutical industry.
Conclusion
Betty P. Wen's innovative work in drug delivery systems and gel production showcases her expertise and commitment to advancing pharmaceutical technology. Her six patents reflect her significant contributions to the field, making her a noteworthy inventor in the industry.