Inventor · San Clemente, CA, US

Sum Chan

23Patents
4h-index
3Co-inventors
52Inventor score

Filing activity: Jun 14, 2007 → Oct 16, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7952067B2 Methods for detecting vitamin C by mass spectrometry Electricity 6 Active
US10571455B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 5 Active
US8748810B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 4 Active
US8569689B2 Methods for detecting vitamin C by mass spectrometry Electricity 4 Active
US8338778B2 Methods for detecting vitamin C by mass spectrometry Electricity 4 Active
US8916817B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 4 Active
US8759754B2 Methods for detecting vitamin C by mass spectrometry Electricity 3 Active
US9234901B2 Mass spectrometry method for measuring vitamin B6 in body fluids Emerging Cross-Sectional Technologies 2 Active
US10215765B2 Detection of vitamins A and E by tandem mass spectrometry Emerging Cross-Sectional Technologies 2 Active
US9063119B2 Methods for detecting vitamin C by mass spectrometry Electricity 2 Active
US11300559B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 2 Active
US8017403B2 Mass spectrometry method for measuring vitamin B6 in body fluid Emerging Cross-Sectional Technologies 2 Active
US10859584B2 Detection of vitamins A and E by tandem mass spectrometry Emerging Cross-Sectional Technologies 2 Active
US11513130B2 Detection of vitamins A and E by tandem mass spectrometry Emerging Cross-Sectional Technologies 1 Active
US9645158B2 Methods for detecting vitamin C by mass spectrometry Electricity 1 Active
US12116617B2 Mass spectrometry method for measuring thiamine in body fluid Physics 0 Active
US11798794B2 Mass spectrometry method for measuring vitamin B6 in body fluid Emerging Cross-Sectional Technologies 0 Active
US12174203B2 Detection of vitamins a and e by tandem mass spectrometry Emerging Cross-Sectional Technologies 0 Active
US10738344B2 Mass spectrometry method for measuring thiamine in body fluid Physics 0 Active
US12196742B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 0 Active
US8399829B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 0 Active
US12165861B2 Mass spectrometry method for measuring vitamin B6 in body fluid Emerging Cross-Sectional Technologies 0 Active
US11821889B2 Vitamin B2 detection by mass spectrometry Emerging Cross-Sectional Technologies 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.