This inventor holds 1 USPTO granted patent. Top assignee: Dennison Manufacturing Company. Active years: 1992.
Company Filing History:
Years Active: 1992
Title: Ann P Burwell - Innovator in Marker Pen Technology
Introduction
Ann P Burwell is a notable inventor based in Natick, MA (US). She has made significant contributions to the field of writing instruments, particularly with her innovative designs for marker pens. Her work has led to advancements that enhance the functionality and usability of these everyday tools.
Latest Patents
Ann P Burwell holds a patent for a retractable marker pen and inks therefor. This invention focuses on retractable marker pens and ink formulations that are particularly useful as fluorescent inks for highlighting text or print. The ink formulation reduces the rate of evaporation from conventional felt, fiber, or plastic marker tips. This property makes it especially suitable for retractable marker pens, which typically do not have a separate cap or lint guard to protect the tip from evaporation when not in use. The ink exhibits excellent flow characteristics across a wide range of tip widths and does not leak or penetrate paper, ensuring that text or printed material on the opposite side remains clear. The formulation consists of a fluorescent dye, selected from methine, xanthene, and anthraquinone dyes, dissolved in a multicomponent solvent system, which includes diethylene glycol, propylene glycol, 2-pyrrolidone, and demineralized water.
Career Highlights
Ann P Burwell is associated with Dennison Manufacturing Company, where she has applied her expertise in developing innovative writing solutions. Her work has not only contributed to the company's product offerings but has also set new standards in the marker pen industry.
Collaborations
Throughout her career, Ann has collaborated with notable colleagues, including Lewis H Johnson and Richard Grandoff. These partnerships have fostered a creative environment that encourages innovation and the development of new ideas.
Conclusion
Ann P Burwell's contributions to the field of marker pen technology exemplify her commitment to innovation and excellence. Her patented designs and formulations have significantly improved the functionality of writing instruments, making them more effective and user-friendly.