Company Filing History:
Years Active: 1980-1989
Title: Mary A. Fedorchak: Innovator in Tungsten and Cobalt Recovery
Introduction
Mary A. Fedorchak is a notable inventor based in Rome, PA (US), recognized for her contributions to the field of materials recovery. With a total of 2 patents, her work focuses on innovative processes for extracting valuable metals from various materials.
Latest Patents
One of her latest patents is titled "Recovery of tungsten, scandium, iron, and manganese from tungsten." This process involves digesting tungsten-bearing material in sulfuric acid at elevated temperatures, utilizing coal as a reducing agent. The method effectively separates a digestion solution containing scandium, iron, and manganese from a residue rich in tungsten. Another significant patent is the "Method for producing cobalt metal powder," which describes a technique for preparing fine particle size cobalt metal powder by treating a soluble cobaltic ammine halide with metallic hydroxide, followed by reduction in a controlled atmosphere.
Career Highlights
Mary has worked with prominent companies such as GTE Products Corporation and GTE Sylvania Incorporated. Her experience in these organizations has contributed to her expertise in the field of metal recovery and processing.
Collaborations
Throughout her career, Mary has collaborated with notable colleagues, including Clarence D. Vanderpool and Judith A. Ladd. These partnerships have likely enriched her research and development efforts.
Conclusion
Mary A. Fedorchak's innovative work in the recovery of tungsten and cobalt showcases her significant contributions to materials science. Her patents reflect a commitment to advancing technology in metal extraction processes.