Company Filing History:
Years Active: 2006-2013
Title: The Innovative Contributions of Patrick N. Keifer
Introduction
Patrick N. Keifer is a notable inventor based in Livermore, CA (US). He has made significant contributions to the field of materials science, particularly in the development of advanced polyurethane foams and micromolding techniques. With a total of 3 patents to his name, Keifer's work exemplifies innovation and practical application in engineering.
Latest Patents
One of Keifer's latest patents is a method for providing a low-density high-strength polyurethane foam. This invention discloses a method for creating a polyurethane closed-cell foam material that exhibits a bulk density below 4 lbs/ft³ while maintaining high strength. The process involves the reaction product of a modified MDI and a sucrose/glycerine-based polyether polyol resin. A small measured quantity of the polyol resin is pre-reacted with a larger quantity of isocyanate in a defined ratio. This allows for a stable foam body to be formed when the remaining polyol resin is added along with a tertiary amine catalyst and water as a blowing agent.
Another significant patent is for a compliant cantilevered micromold. This invention provides a three-dimensional micromold suitable for replicating cantilevered microparts, greatly simplifying the replication process. The compliant cantilevered micromold can be used to fabricate microparts through casting or electroforming techniques. When used for electroforming, the micromold includes an electrically conducting base formed by a porous metal substrate embedded within the compliant structure. Methods for fabricating the micromold and replicating cantilevered microparts are also included in this patent.
Career Highlights
Throughout his career, Patrick N. Keifer has worked with prominent organizations such as Sandia Corporation and Sandia National Laboratories. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in technology and materials.
Collaborations
Keifer has collaborated with notable colleagues, including Alfredo M. Morales and Linda Domeier. These partnerships have fostered a creative environment that has led to the successful development of his patented technologies.
Conclusion
Patrick N. Keifer's contributions to the field of materials science through his innovative patents demonstrate his commitment to advancing technology. His work in developing high-strength polyurethane foams and compliant micromolds showcases the
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