Location History:
- Woodbury, MN (US) (1992)
- Saint Paul, MN (US) (1992)
- Minneapolis, MN (US) (1995 - 2013)
Company Filing History:
6 out of 7,865 
3 out of 14,059 
Years Active: 1992-2013
Title: The Innovations of James A. Klein
Introduction
James A. Klein is a notable inventor based in Minneapolis, MN, with a remarkable portfolio of nine patents. His work primarily focuses on advancements in optical films and materials, showcasing his expertise in polymer technology.
Latest Patents
Among his latest patents is a multilayer optical film layer that comprises a blend of methyl methacrylate polymer and styrene-acrylonitrile polymer. This invention describes multilayer optical films featuring an optical stack that includes at least one birefringent optical layer and a second isotropic optical layer with a birefringence of less than 0.04 at 633 nm. Additionally, he has developed a multilayer polyester film that consists of at least seven layers, alternating between polyethylene terephthalate and polyethylene naphthalate. This innovative film exhibits enhanced tensile moduli in both stretch directions, surpassing the performance of monolithic films.
Career Highlights
James has had a significant career, working with prominent companies such as Minnesota Mining and Manufacturing Company and 3M Innovative Properties Company. His contributions to these organizations have been instrumental in advancing their technological capabilities.
Collaborations
Throughout his career, James has collaborated with notable colleagues, including Brandt K. Carter and Raymond L. Lucking. These partnerships have fostered a creative environment that has led to numerous innovations.
Conclusion
James A. Klein's contributions to the field of polymer technology and optical films have made a lasting impact. His innovative patents and collaborations highlight his role as a leading inventor in his domain.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.