This inventor holds 5 USPTO granted patents. Top assignee: Ciba-Geigy Corporation. Active years: 1978-1985.
Company Filing History:
Years Active: 1978-1985
Title: Sigmund Gunzenhauser: Innovator in Chromogenic Compounds
Introduction
Sigmund Gunzenhauser is a notable inventor based in Arlesheim, Switzerland. He has made significant contributions to the field of chemistry, particularly in the development of innovative compounds. With a total of 5 patents to his name, Gunzenhauser's work has had a considerable impact on various applications.
Latest Patents
Among his latest patents, Gunzenhauser has developed chromogenic dihydroquinazolines. This invention relates to chromogenic dihydroquinazolines of the general formula, wherein the ring A is a monocyclic or polycyclic, unsubstituted or substituted heterocyclic radical that may contain further heteroatoms as ring members. Another significant invention is the chromenoazaindolizine compounds, which are characterized by a general formula where each of Y, X1, and X2 can independently be hydrogen, halogen, lower alkyl, lower alkanoylamino, or a specific group of the formula. Each of R1, R2, R3, and R4 can also independently be hydrogen, C1-C12 alkyl, or various other substituents.
Career Highlights
Gunzenhauser has been associated with Ciba-Geigy Corporation, a prominent player in the chemical and pharmaceutical industry. His work at the company has allowed him to explore and innovate in the field of chemical compounds, leading to his successful patent applications.
Collaborations
Throughout his career, Gunzenhauser has collaborated with notable colleagues, including Heinz Balli and Ian J Fletcher. These collaborations have contributed to the advancement of his research and the successful development of his patented inventions.
Conclusion
Sigmund Gunzenhauser's contributions to the field of chemistry through his innovative patents highlight his role as a significant inventor. His work continues to influence the development of new compounds and applications in various industries.