Company Filing History:
Years Active: 1977-1986
Title: David W Williston: Innovator in Conductive Circuit Technology
Introduction
David W Williston is a notable inventor based in Newark, DE (US). He has made significant contributions to the field of conductive circuit technology, holding a total of 3 patents. His work has advanced the methods of preparing conductive circuits, showcasing his innovative approach to engineering.
Latest Patents
One of Williston's latest patents is the "Dichromic process for preparation of conductive circuit." This process utilizes two photohardenable layers on a substrate that may contain a conductive circuit. The upper layer becomes hardenable and nontacky when exposed to short wavelengths of radiation, while the lower layer remains tacky and sensitive to long wavelength radiation. The photohardenable layers are imagewise exposed through a dichromic phototool, and the unhardened image areas are solvent developed to reveal tacky areas. These areas are then treated with metal or alloy particles, leading to the creation of multilayer conductive circuits.
Another significant patent is the "Continuous synthesis of chromium dioxide." This invention involves producing ferromagnetic chromium dioxide in a continuous operation by feeding a preheated paste of hydrated chromium oxides and additives into a twin screw reactor. The process includes reacting at elevated temperature and pressure while venting oxygen and steam, ultimately forming a viscous chromium dioxide-water mixture.
Career Highlights
David W Williston is associated with E.I. du Pont de Nemours and Company, where he has been able to apply his innovative ideas in a corporate setting. His work has not only contributed to the company's portfolio but has also pushed the boundaries of what is possible in conductive circuit technology.
Collaborations
Throughout his career, Williston has collaborated with notable colleagues such as Lewis Clinton Bancroft and Dale M Hiller. These collaborations have likely enriched his work and contributed to the successful development of his patents.
Conclusion
David W Williston stands out as an influential inventor in the field of conductive circuits. His innovative patents and contributions to E.I. du Pont de Nemours and Company highlight his commitment to advancing technology. His work continues to inspire future innovations in the industry.