John F Welch

Title: Innovations of John F Welch

Introduction

John F Welch is an accomplished inventor based in Winchester, MA (US). He has made significant contributions to the field of ink technology, particularly in the development of colored pigments. His innovative work has led to the creation of a patent that addresses various parameters and properties of colored pigments.

Latest Patents

John F Welch holds a patent for "Ink jet inks, inks, and other compositions containing colored pigments." This patent describes colored pigments with specific characteristics, including a particle size ranging from about 10 nm to about 300 nm. The invention also details a filterability criterion, ensuring that the pigments maintain their properties under certain conditions. The process for preparing surface-modified colored pigments involves combining treating agents with colored pigments in a high-shear environment, resulting in a reaction product that enhances the pigments' stability and purity.

Career Highlights

Welch is associated with Cabot Corporation, where he has been instrumental in advancing the company's ink technology. His work has not only contributed to the company's portfolio but has also set new standards in the industry for colored pigments.

Collaborations

Throughout his career, John F Welch has collaborated with notable colleagues, including Yuan Yu and Friedrich K Von Gottberg. These partnerships have fostered innovation and have been pivotal in the development of new technologies in the field.

Conclusion

John F Welch's contributions to ink technology and colored pigments exemplify the spirit of innovation. His patent and work at Cabot Corporation highlight his role as a significant inventor in this specialized field.