This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Xerox Corporation, Tektronix, Inc.. Active years: 1998-2011.
Company Filing History:
Years Active: 1998-2011
Title: The Innovations of Leonard Guan
Introduction
Leonard Guan is an accomplished inventor based in Wilsonville, OR (US). He has made significant contributions to the field of technology, particularly in the area of printer and copier devices. With a total of 3 patents to his name, his work has had a notable impact on the industry.
Latest Patents
One of Leonard Guan's latest patents is a method to prevent metered toner gray market leakage. This innovative device identifies the type of module being used in printers or copiers. If the module requires an unlock code, the device prompts the user for this code, which can be a hash of the device's serial number. Once the unlock code is received, the device can operate with the specified modules. If the unlock code is not provided, the device will not function with those modules, ensuring security and compliance.
Career Highlights
Throughout his career, Leonard has worked with prominent companies such as Xerox Corporation and Tektronix, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in printing technology.
Collaborations
Leonard has collaborated with notable coworkers, including Robin Y Wessel and David D Martenson. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Leonard Guan's contributions to the field of technology through his patents and collaborations highlight his role as a significant inventor. His innovative methods continue to shape the industry and enhance the functionality of printing devices.