This inventor holds 3 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignee: 3M Innovative Properties Company. Active years: 1996-2015.
Company Filing History:
Years Active: 1996-2015
Title: Douglas E Earl: Innovator in Polyurethane Foam Technology
Introduction
Douglas E Earl is a notable inventor based in Saint Paul, MN (US), recognized for his contributions to the field of polyurethane foam technology. With a total of 3 patents to his name, Earl has made significant advancements in the methods and apparatuses used for reaction injection molding of polyurethane foam.
Latest Patents
Earl's latest patents include innovative methods for creating polyurethane foam articles. One of his patents details an apparatus and method for reaction injection molding of polyurethane foam, which involves a recirculation loop containing polyols along with an effective amount of water, and another loop containing isocyanates, both of which are partially evacuated. This method enhances the efficiency and quality of polyurethane foam production.
Career Highlights
Douglas E Earl is associated with 3M Innovative Properties Company, where he has been instrumental in developing new technologies related to polyurethane foam. His work has not only contributed to the company's portfolio but has also advanced the industry standards for foam production.
Collaborations
Earl has collaborated with notable colleagues such as Jeffrey P Lenzendorf and Grady A Dunham, further enriching his work and expanding the impact of his innovations.
Conclusion
In summary, Douglas E Earl is a prominent inventor whose work in polyurethane foam technology has led to significant advancements in the field. His patents and collaborations reflect his commitment to innovation and excellence in engineering.