Company Filing History:
Years Active: 1991-1993
Title: Innovations by Daniel Liu in Photodynamic Therapy
Introduction
Daniel Liu is an accomplished inventor based in Vancouver, Canada. He has made significant contributions to the field of photodynamic therapy, holding 2 patents that focus on innovative compositions and methods for enhancing therapeutic efficacy.
Latest Patents
His latest patents include compositions for photodynamic therapy that describe methods to prepare intermediates for the conjugation of active ingredients to hydrophilic carriers. The process involves derivatizing polyhydroxylated carriers to convert hydroxyls into leaving groups, followed by a reaction with alkylene diamine in the presence of a reducing agent. This results in a derivatized carrier that can be coupled to substituents containing carboxyl groups using dehydrating agents. Another notable patent involves porphyrin-type photosensitizers that can be formulated as water-soluble drugs through conjugation with hydrophilic polymers, such as polyvinyl alcohol. This innovative approach allows for improved solubility and biodistribution, offering advantages over traditional administration methods.
Career Highlights
Daniel Liu is currently employed at Quadra Logic Technologies, Inc., where he continues to develop groundbreaking solutions in the medical field. His work has positioned him as a key player in the advancement of photodynamic therapy technologies.
Collaborations
He collaborates with talented individuals such as Frank Jiang and John Hobbs, contributing to a dynamic team focused on innovation and research.
Conclusion
Daniel Liu's contributions to photodynamic therapy through his patents and collaborative efforts highlight his role as a significant inventor in the field. His work continues to pave the way for advancements in medical treatments.