This inventor holds 2 USPTO granted patents. Top assignee: Alcon Laboratories, Inc.. Active years: 2000.
Company Filing History:
Years Active: 2000
Title: Kevin Lewellen: Innovator in Polishing Methods for Acrylic Articles
Introduction
Kevin Lewellen is a notable inventor based in Arlington, TX (US). He has made significant contributions to the field of polishing methods for soft acrylic materials. With a total of 2 patents, his work focuses on enhancing the quality and efficiency of polishing processes.
Latest Patents
Kevin Lewellen's latest patents include innovative methods for polishing soft acrylic articles. The first patent, titled "Polishing method for soft acrylic articles," discloses a method that involves a polishing step and a cleaning step. In this method, a receptacle is charged with polishing beads of various sizes, alumina, a swelling agent, and the articles to be polished. The mixture is agitated for a sufficient period and speed to remove surface irregularities. After polishing, the articles are cleaned using a cleaning slurry that includes cleaning beads, alumina, a solvent, and a surfactant.
The second patent, "Cryogenic polishing method for soft acrylic articles," introduces a cryogenic polishing step followed by a cleaning step. This method also utilizes a receptacle charged with polishing beads, sodium bicarbonate, a swelling agent, and the articles to be polished. The process involves agitating the mixture at a rotation speed adequate to eliminate surface irregularities. The cleaning step employs a cleaning slurry that consists of cleaning beads, sodium hydroxide, and water or alumina, along with a surfactant and solvent.
Career Highlights
Kevin Lewellen is currently employed at Alcon Laboratories, Inc., where he continues to develop innovative solutions in the field of acrylic polishing. His expertise and dedication to improving polishing methods have made a significant impact on the industry.
Collaborations
Throughout his career, Kevin has collaborated with talented individuals such as John W Sheets, Jr. and Stephanie Robinson. These collaborations have contributed to the advancement of his innovative polishing techniques.
Conclusion
Kevin Lewellen is a distinguished inventor whose work in polishing methods for soft acrylic articles has led to valuable patents. His contributions continue to influence the industry and enhance the quality of acrylic products.