John Stephen Locke

Title: **John Stephen Locke: A Pioneer in Photopolymerizable Printing Technology**

Introduction

John Stephen Locke is a distinguished inventor based in Hockessin, DE, recognized for his significant contributions to the field of printing technology. With a total of 11 patents to his name, Locke’s innovations have paved the way for advancements in photopolymerizable printing forms, enhancing the efficiency and quality of relief printing processes.

Latest Patents

Locke's most recent patents include a groundbreaking printing form precursor, along with a process for creating this precursor and a method for preparing a printing form derived from it. This invention focuses on a photosensitive element, particularly a photopolymerizable printing form precursor. The innovative design incorporates a layer of photosensitive composition, a digital layer adjacent to the photosensitive layer, and a unique cell pattern layer situated between these two. Each feature within the cell pattern layer occupies an area of 5 to 750 square microns and utilizes ink that is opaque to actinic radiation while remaining transparent to infrared radiation. This integration facilitates rapid digital imaging using relatively low resolution optics, allowing for effective mask formation without the necessity of developing a microcell pattern in the digital layer. Consequently, the printing form precursor ensures a print surface optimized for producing solids with consistent and dense ink coverage.

Career Highlights

Throughout his career, John Stephen Locke has made significant strides in the printing industry while working with prominent companies such as E.I. DuPont de Nemours and Company and DuPont Electronics, Inc. His continuous pursuit of innovation has allowed him to develop technologies that lead the charge in modern printing applications.

Collaborations

Locke has collaborated with esteemed professionals in the field, including Robert M. Blomquist and James Walter Wheeler. These partnerships have fostered a creative environment conducive to developing and refining cutting-edge printing technologies.

Conclusion

In summary, John Stephen Locke is an influential inventor whose work on photopolymerizable printing technology has made lasting impacts in the printing industry. His commitment to innovation and collaboration continues to drive advancements that shape the future of printing. With 11 patents attributed to his name, Locke stands out as a leading figure in the realm of invention and innovation in printing technology.