This inventor holds 4 USPTO granted patents, plus 1 CIPO patent. Top assignee: E.i. Dupont De Nemours and Company. Active years: 2001-2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2001-2004
Title: David James Ruffin: Innovator in Monofilament Technology
Introduction
David James Ruffin is a notable inventor based in Parkersburg, WV (US). He has made significant contributions to the field of monofilament technology, particularly in the development of innovative products that enhance everyday items.
Latest Patents
Ruffin holds 4 patents, with his latest inventions focusing on glitter-containing filaments for use in brushes. These thermoplastic polymer monofilaments are oriented from 3.0-6.0 times their original length and have a diameter ranging from 125-600 microns. They contain 0.2-5.0% by weight of glitter or film particles, which have a particle size of 50-400 microns in their longest diameter. The thickness of these particles ranges from 2-50 microns, and they possess a diameter-to-thickness ratio of at least 2 to 1. The design ensures that the longest diameter of the particle does not exceed 80% of the diameter of the monofilament, providing an attractive appearance. Additionally, a core sheath monofilament is part of this invention, where the core is a thermoplastic polymer monofilament with a sheath of the same or different thermoplastic polymer containing the described particles. These monofilaments are particularly useful in toothbrushes and cosmetic brushes.
Career Highlights
David James Ruffin is associated with E.I. DuPont De Nemours and Company, where he has been able to apply his innovative ideas in a corporate setting. His work has contributed to advancements in product design and functionality.
Collaborations
Ruffin has collaborated with notable coworkers, including Michael Christopher Needham and Charles Fletcher Nelson. Their combined expertise has likely fostered a creative environment that encourages innovation.
Conclusion
David James Ruffin's contributions to monofilament technology demonstrate his commitment to innovation and improvement in everyday products. His patents reflect a blend of creativity and practicality that continues to influence the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile