This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: National Oilwell Varco, L.p., Shanghai Sim-Bcd Semiconductor Manufacturing Co., Ltd.. Active years: 2017-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 593 
1 out of 9 Years Active: 2017-2023
Title: Innovations of Lei Cheng
Introduction
Lei Cheng is an accomplished inventor based in Shanghai, China. He has made significant contributions to the fields of lubrication technology and power supply systems. With a total of 2 patents, his work reflects a commitment to advancing engineering solutions.
Latest Patents
One of Lei Cheng's latest patents is a "Lubricator assembly and method for servicing tubular members." This invention features a lubricator assembly designed to service tubular members effectively. It includes a mounting base, a lubricant housing that is movably coupled to the base, and a guide pin that directs lubricant against the tubular member. The design ensures efficient lubrication through a first chamber that operates in response to the engagement of the tubular member with the guide pin.
Another notable patent is the "Method and circuit for constant current buck converter." This invention involves a switch mode power supply (SMPS) that utilizes a buck converter circuit. The controller regulates the output current by managing the peak current in the first inductor. This innovation allows the SMPS to maintain a constant average output current, independent of input and output voltages, while also achieving a high power factor.
Career Highlights
Lei Cheng has worked with prominent companies such as Shanghai Sim-Bcd Semiconductor Manufacturing Co., Ltd. and National Oilwell Varco, L.P. His experience in these organizations has contributed to his expertise in semiconductor manufacturing and oilfield services.
Collaborations
Lei has collaborated with notable coworkers, including Zhimin Hu and Qun Li, who is a woman. These partnerships have likely enriched his work and fostered innovation in his projects.
Conclusion
In summary, Lei Cheng is a notable inventor whose patents reflect his innovative spirit and technical expertise. His contributions to lubrication technology and power supply systems are significant and demonstrate his commitment to advancing engineering solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile