John E Presgrave

Title: The Innovations of John E Presgrave

Introduction

John E Presgrave is a notable inventor based in Todmorden, GB. He has made significant contributions to the field of dye compositions, particularly in the context of ink jet printing. With a total of 4 patents to his name, Presgrave's work has had a lasting impact on the industry.

Latest Patents

Among his latest patents, Presgrave has developed compositions that are useful in inks suitable for ink jet printing. One of his notable inventions includes a dye composition that comprises a black dye of a specified formula and a dye of another formula or its salt. Additionally, he has created dye compositions and aqueous inks derived from them, which are especially suitable for use in ink jet printing. These compositions contain one or more dyes that, in their free acid form, adhere to a specific formula.

Career Highlights

Throughout his career, John E Presgrave has worked with prominent companies such as Imperial Chemical Industries Limited and Zeneca Limited. His experience in these organizations has allowed him to refine his expertise in dye compositions and their applications in various printing technologies.

Collaborations

Presgrave has collaborated with notable individuals in his field, including David Greenwood and Peter Gregory. These partnerships have contributed to the advancement of his research and innovations.

Conclusion

John E Presgrave's contributions to the field of dye compositions and ink technology highlight his role as a significant inventor. His patents continue to influence the industry, showcasing the importance of innovation in the realm of printing technologies.