This inventor holds 3 USPTO granted patents. Top assignees: Government of the United States of America, as Represented by the Secretary of Commerce, The United States of America as Represented by the United States. Active years: 1992-1999.
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 762 
1 out of 3,975 
Years Active: 1992-1999
Title: Christopher James Evans: Innovator in Polishing Technology
Introduction
Christopher James Evans is a notable inventor based in Gaithersburg, MD (US). He has made significant contributions to the field of polishing technology, holding a total of 3 patents. His innovative approaches have led to advancements that enhance the efficiency and effectiveness of polishing processes.
Latest Patents
One of his latest patents is the Renewable Polishing Lap. This invention features a polishing lap that is resistant to corrosive and reactive polishing media. It has a resilient surface that provides excellent finishes while maintaining dimensional control and accuracy. The design includes a lap substrate with a specific overall shape and localized texture, along with a replaceable lap film that can be easily reconditioned or modified for different abrasives and polishing media.
Another significant patent is the Interferometric Thickness Variation Test Method for Windows and Silicon. This method involves an interferometric apparatus that determines the thickness and variations of silicon wafers and other optics. The process includes emitting a beam of electromagnetic radiation, splitting it into reference and test beams, and analyzing the interference patterns to measure thickness variations accurately.
Career Highlights
Christopher has worked with the Government of the United States of America, as represented by the Secretary of Commerce. His experience in this role has allowed him to contribute to various technological advancements and innovations.
Collaborations
Throughout his career, Christopher has collaborated with notable individuals such as Robert E Parks and Ralph L Lundin. These collaborations have further enriched his work and contributed to the development of his patented technologies.
Conclusion
Christopher James Evans is a distinguished inventor whose work in polishing technology has led to significant advancements in the field. His patents reflect a commitment to innovation and excellence, making him a valuable contributor to the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile