Ann Arbor, MI, United States of America

David J Leffell

This inventor holds 1 USPTO granted patent. Top assignee: Yale University. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David J Leffell. Retrieved from https://idiyas.com/inventor/david-j-leffell-wukvsjxa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 88(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: David J Leffell: Innovator in Skin Evaluation Technology

Introduction

David J Leffell is a notable inventor based in Ann Arbor, MI (US). He has made significant contributions to the field of dermatology through his innovative patent. His work focuses on the evaluation of skin characteristics, particularly in relation to aging and ultraviolet exposure.

Latest Patents

David J Leffell holds a patent for an "Optical method and apparatus for detecting and measuring aging." This invention involves a method and apparatus for inducing fluorescence in human skin, in vivo, and for evaluating certain skin characteristics from the spectral intensity of the induced fluorescence. The technology utilizes a helium-cadmium laser directed at a skin area, with a fiberoptic element facilitating the evaluation. The induced fluorescent energy is analyzed to develop a ratio of characteristic portions of fluorescent intensity, which can indicate differences in skin characteristics between subjects of varying ages.

Career Highlights

Leffell's career is marked by his association with Yale University, where he has contributed to research and development in skin evaluation technologies. His innovative approach has paved the way for advancements in understanding skin aging and the effects of ultraviolet radiation.

Collaborations

David J Leffell has collaborated with Lawrence I Deckelbaum, further enhancing the research and development of skin evaluation methods. Their combined expertise has contributed to the advancement of technologies in this field.

Conclusion

David J Leffell's work exemplifies the intersection of innovation and healthcare, particularly in the evaluation of skin aging. His contributions have the potential to impact dermatological practices significantly.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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