This inventor holds 3 USPTO granted patents. Top assignee: Eastman-Kodak Company. Active years: 1977-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Rochester, NY (US) (1977)
- Topsfield, MA (US) (1995)
Company Filing History:
Years Active: 1977-1995
Title: The Innovations of Donald P. Wrathall
Introduction
Donald P. Wrathall is a notable inventor based in Rochester, NY (US). He has made significant contributions to the field of photography through his innovative patents. With a total of 3 patents, his work has had a lasting impact on photographic technology.
Latest Patents
One of his latest patents is focused on the control of methionine content in photographic grade gelatin. This method involves preparing high-grade gelatin with a specific methionine content while reducing variability from batch to batch. The process includes controlling the amount of oxidant present during the processing of bone stock into gelatin. Key controls involve managing oxidant concentration, the volume of process water, and the range of gelatin extracts used in the final product. The aim is to maintain the total range of oxidant around a set point of less than 220 meq per 100 kg of dry bone.
Another significant patent by Wrathall involves photographic compositions and elements that include an internal latent image. This radiation-sensitive composition features silver halide grains capable of forming an internal latent image, along with an acylhydrazinophenylthiourea nucleating agent. This innovative composition can be applied as a coating on a support to create a photographic element.
Career Highlights
Donald P. Wrathall has spent a considerable part of his career at Eastman-Kodak Company, a leader in imaging technology. His work has contributed to advancements in photographic materials and processes, enhancing the quality and reliability of photographic products.
Collaborations
Throughout his career, Wrathall has collaborated with notable colleagues, including Wayne W. Weber, II and Ronald E. Leone. These collaborations have fostered innovation and development in the field of photography.
Conclusion
Donald P. Wrathall's contributions to photographic technology through his patents demonstrate his innovative spirit and dedication to the field. His work continues to influence the industry, ensuring high-quality photographic materials for future generations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile