This inventor holds 5 USPTO granted patents. Top assignees: Aktiebolaget Leo, Ab Leo. Active years: 1978-1986.
Company Filing History:
Years Active: 1978-1986
Title: Sten K Kristensson: Innovator in Steroid Chemistry
Introduction
Sten K Kristensson is a notable inventor based in Helsingborg, Sweden. He has made significant contributions to the field of steroid chemistry, holding a total of 5 patents. His work focuses on innovative processes that enhance the synthesis and preparation of steroid compounds.
Latest Patents
Kristensson's latest patents include a selective acylation process and an improved steroid ester synthesis. The selective acylation process involves preparing phenolic N-disubstituted carbamate esters of steroids by reacting an acylating agent with steroids that have at least two free hydroxy groups. This process is conducted in an inert solvent and may include the presence of an acid acceptor. The improved steroid ester synthesis utilizes carbodiimides and catalytic amounts of 4-(tertiary amino)-pyridines, combined with acid catalysts, to produce pure, non-discolored compounds in high yields.
Career Highlights
Throughout his career, Kristensson has worked with prominent companies such as Aktiebolaget Leo and Ab Leo. His expertise in steroid chemistry has positioned him as a valuable contributor to the field.
Collaborations
Some of his notable coworkers include Anders R Stamvik and Hans Jacob Fex. Their collaborative efforts have further advanced the research and development of steroid-related innovations.
Conclusion
Sten K Kristensson's contributions to steroid chemistry through his innovative patents and collaborations highlight his importance in the field. His work continues to influence advancements in the synthesis of steroid compounds.