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For the Inventor, By the Inventor

Westfield, NJ, United States of America

Tiang-shing Chang

USPTO Granted Patents = 11

Average Co-Inventor Count = 2.2

ph-index = 9

Forward Citations = 298(Granted Patents)


Company Filing History:

goldMedal11 out of 104 
 
Block Drug Company, Inc.
 patents

Years Active: 1982-1997

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11 patents (USPTO):Explore Patents
1. 5696181 - Denture fixative (1997-12-09),
2. 5188755 - Surface erodible controlled releasing, free standing cleansing block and (1993-02-23),
3. 5120528 - Taste preserving, mild oral hygiene compositions (1992-06-09),
4. 4986754 - Thermoplastic and injectable endodontic filling compositions (1991-01-22),
5. 4950697 - Thermoplastic and injectable endodontic filling compositions (1990-08-21),
6. 4544356 - Reciprocating dental prophylactic angular device (1985-10-01),
7. 4542168 - Denture fixative composition with partially neutralized and crosslinked (1985-09-17),
8. 4521551 - Denture fixative composition containing partially neutralized copolymers (1985-06-04),
9. 4470814 - Method of adhering dentures (1984-09-11),
10. 4373036 - Denture fixative composition (1983-02-08),
11. 4310516 - Cosmetic and pharmaceutical vehicle thickened with solid emulsifier (1982-01-12),

Title: The Innovative Contributions of Tiang-shing Chang

Introduction

Tiang-shing Chang is a notable inventor based in Westfield, NJ (US), recognized for his significant contributions to the field of dental adhesives and cleaning technologies. With a total of 11 patents to his name, Chang has demonstrated a commitment to innovation and improvement in everyday products.

Latest Patents

Among his latest patents, Chang has developed a denture fixative that features an improved adhesive composition. This composition is made from a highly cross-linked lower alkyl ether/maleic acid or maleic anhydride copolymer, where up to 85% of the initial free carboxyl groups are reacted with various cross-linking agents. These agents include mixtures of inorganic divalent cations such as calcium, magnesium, and zinc, along with organic bifunctional compounds like propylene glycol and glycerin. The copolymer boasts a specific viscosity of no less than 1.5. Additionally, he has created a surface erodible controlled releasing, free-standing cleaning block for domestic water closets, which incorporates a controlled releasing agent, erosion rate modifier, and other essential components.

Career Highlights

Tiang-shing Chang is currently associated with Block Drug Company, Inc., where he continues to innovate and develop new products. His work has significantly impacted the dental and cleaning industries, providing solutions that enhance user experience and product effectiveness.

Collaborations

Chang has collaborated with notable coworkers, including Lucy J Zientek and Arthur Viningauz, contributing to a dynamic and innovative work environment.

Conclusion

Tiang-shing Chang's inventive spirit and dedication to improving everyday products through his patents exemplify the essence of innovation. His contributions continue to make a difference in the fields of dental adhesives and cleaning technologies.

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