Location History:
- Duval, WA (US) (1996 - 2000)
- Duvall, WA (US) (1997 - 2014)
Company Filing History:
3 out of 25 
2 out of 17 
1 out of 310 Years Active: 1996-2014
Title: Innovations of Alexander J Pallenberg
Introduction
Alexander J Pallenberg is a notable inventor based in Duvall, WA (US). He has made significant contributions to the field of photoactive agents, holding a total of 7 patents. His work focuses on improving the production processes of various compounds, particularly in the realm of chlorin derivatives.
Latest Patents
Pallenberg's latest patents include compositions and methods for making a photoactive agent. One of his notable inventions describes an improved two-stage reaction process for the production of mono-L-aspartyl chlorin e. In the first stage, an activation reaction occurs between chlorin e and a carbodiimide, resulting in a previously unknown anhydride. This reaction product is purified to eliminate a significant proportion of the precursors of di-L-aspartyl chlorin e. The purified activation reaction product contains a higher concentration of the unknown anhydride, which is then utilized in a second stage. This stage involves a coupling reaction with aspartate, producing a coupling reaction product that has a significantly reduced concentration of di-L-aspartyl chlorin e6. This reduction facilitates the purification of mono-L-aspartyl chlorin e6 from the coupling reaction mixture.
Career Highlights
Throughout his career, Pallenberg has worked with several prominent companies, including Procyte Corporation and Light Sciences Oncology Inc. His innovative approaches and dedication to research have positioned him as a key figure in his field.
Collaborations
Pallenberg has collaborated with notable colleagues such as Leon Xu and Leonard M Patt. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Alexander J Pallenberg's contributions to the field of photoactive agents and his innovative patents highlight his expertise and commitment to advancing scientific knowledge. His work continues to influence the development of new compounds and processes in the industry.