This inventor holds 33 USPTO granted patents and 19 EPO patents, primarily in Polymer Fiber Technology. Top assignees: E.i. Dupont De Nemours and Company, Magellan Systems International LLC, Dupont Safety & Construction, Inc.. Active years: 1982-2022.
Location History:
- Glenwood, OR (US) (1982 - 1984)
- Wilmington, DE (US) (1990 - 1991)
- Midlothian, VA (US) (1994 - 2022)
Company Filing History:
30 out of 16,339 
9 out of 15 
1 out of 120 
Years Active: 1982-2022
Areas of Expertise:
Title: The Innovative Journey of Steven R. Allen in Material Science
Introduction
Steven R. Allen, a prominent inventor based in Midlothian, Virginia, has made significant contributions to the field of material science with a remarkable portfolio of 31 patents. His innovative work primarily centers around advanced polymer technologies, where he has developed unique materials that have various industrial applications.
Latest Patents
Among his latest patents, two inventions stand out:
1. **Aramid Copolymer Yarn Having Low Residual Sulfur**: This invention focuses on a yarn created from a polymer that includes imidazole groups. Notably, this yarn exhibits a reduced sulfur content ranging from 0.01% to 3.0% by weight, while maintaining a high tenacity of 30 cN/dtex (approximately 33.3 gpd) or higher.
2. **Sulfur-Containing Imidazole Fiber Having Ionically Bonded Halides**: This innovation pertains to a fiber composed of a polymer featuring imidazole groups. The fiber comprises two significant components: a halide anion present in quantities of 0.05% to 20.1% by weight of the fiber and sulfur, which is included at levels of 0.05% to 3% by weight. This specialized fiber demonstrates hydrochloric acid evolution as identified by TGA-IR within a temperature range of 277.13°C to 448.19°C.
Career Highlights
Steven R. Allen has been associated with some of the leading companies in the field, including E.I. du Pont de Nemours and Company and Magellan Systems International LLC. His expertise in polymer science has not only propelled his career forward but has also significantly impacted the materials industry.
Collaborations
Throughout his professional journey, Allen has collaborated with several notable colleagues, including Christopher William Newton and David J. Rodini. These collaborations have fostered innovative research and development, further pushing the boundaries of material science.
Conclusion
Steven R. Allen stands as a noteworthy figure in the realm of material innovations. His extensive patent portfolio and collaborative efforts illustrate his commitment to advancing technology in polymer sciences. As he continues to innovate, his contributions will likely pave the way for future developments in the industry.