This inventor holds 4 USPTO granted patents. Top assignees: American Hoechst Corporation, Hoechst Celanese Corporation, Other. Active years: 1987-1990.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 233 
1 out of 1,194 
1 out of 834,513 Years Active: 1987-1990
Title: Richard L Shadrach: Innovator in Color Proofing Technology
Introduction
Richard L Shadrach is a notable inventor based in Belle Mead, NJ (US). He has made significant contributions to the field of color proofing technology, holding a total of 4 patents. His work has been instrumental in advancing the accuracy and quality of lithographic printing processes.
Latest Patents
Shadrach's latest patents include a Positive Working Color Proofing System Comprising Polyvinyl. This invention relates to positive working photosensitized sheet constructions that, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is particularly useful as a color proofing film, which can predict the image quality from a lithographic printing process. Another significant patent is the Optical Brightener Containing Positive Working Color Proofing System. This invention also involves positive working photosensitized sheet constructions that accurately reproduce images when exposed to actinic radiation. The element consists of a substrate, colored photosensitive layer, and adhesive layer, with the adhesive layer containing an optical brightener compound that reduces residual yellow staining from the naphthoquinone diazide sensitizer.
Career Highlights
Throughout his career, Richard L Shadrach has worked with prominent companies such as American Hoechst Corporation and Hoechst Celanese Corporation. His experience in these organizations has contributed to his expertise in color proofing technology and innovation.
Collaborations
Shadrach has collaborated with notable professionals in his field, including Stephan J Platzer and Gabor I Koletar. These collaborations have further enriched his work and contributed to advancements in color proofing systems.
Conclusion
Richard L Shadrach is a distinguished inventor whose work in color proofing technology has had a lasting impact on the printing industry. His innovative patents and collaborations reflect his commitment to enhancing image quality in lithographic processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile