This inventor holds 1 USPTO granted patent. Top assignee: Pfizer Corporation. Active years: 1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1994
Title: Douglas John: Inventor in New London, Connecticut
Introduction
Douglas John is an inventor associated with New London, Connecticut, and Pfizer Corporation. His patent work concerns a process for preparing aryl piperazinyl-heterocyclic compounds.
Latest Patents
John is credited with 1 patent: “Process for Preparing Aryl Piperazinyl-Heterocyclic Compounds.” The patent describes reacting a piperazine salt with an alkyl halide-containing compound in water, using a reagent to neutralize the hydrohalic acid, and heating the mixture under conditions suitable for coupling. The process produces the specified compounds or their pharmaceutically acceptable acid addition salts.
Career Highlights
The available information associates John with Pfizer Corporation and identifies his patent contribution in pharmaceutical chemistry. The patent focuses on a method for preparing compounds with potential pharmaceutical relevance.
Collaborations
John’s listed coworkers include Frank R. Busch and Sabeto A. DiRoma. Their names appear alongside his in the provided information, though specific roles or contributions are not stated.
Conclusion
Douglas John’s recorded invention is a Pfizer-associated process for preparing aryl piperazinyl-heterocyclic compounds, reflecting a contribution to pharmaceutical chemistry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile