Inventor · Hangzhou City, CN

Na Xu

23Patents
3h-index
38Co-inventors
59Inventor score

Filing activity: Mar 23, 2006 → Jan 16, 2025

Most-cited inventions

PatentTitleAreaCited byStatus
US8132257B2 Anti-virus method based on security chip Physics 5 Active
US9885330B1 High-pressure fuel pump actuator used in engine Mechanical Engineering; Lighting; Heating 5 Active
USD1065838S1 Long handled barbecue cleaning brush General 4 Active
US9873986B2 Paper-making aid composition and process for increasing ash retention of finished paper Textiles; Paper 3 Active
USD995172S1 Guitar stand General 2 Active
US9873983B2 Process and compositions for paper-making Textiles; Paper 2 Active
USD999197S1 Microphone stand General 2 Active
US9863382B2 High pressure oil pump roller tappet Mechanical Engineering; Lighting; Heating 1 Active
US9869212B2 Columnar hydraulic tappet Mechanical Engineering; Lighting; Heating 1 Active
US10408093B2 Welded high-pressure fuel pump roller tappet Mechanical Engineering; Lighting; Heating 1 Active
US12119012B2 Method and apparatus for voice recognition in mixed audio based on pitch features using network models, and storage medium Physics 0 Active
US11746232B2 Method of preparing vinyl collagen microsphere polyamide fiber composite material Textiles; Paper 0 Active
US10316469B2 On-line control and reaction process for pH adjustment Chemistry; Metallurgy 0 Active
US10704201B2 Dry strength agent composition and method for enhancing the dry strength of paper Textiles; Paper 0 Active
US10215201B2 Column type hydraulic tappet Mechanical Engineering; Lighting; Heating 0 Active
US12401896B2 Imaging device and focus position setting method Physics 0 Active
US12258651B2 Method for extracting germanium based on acid decomposition Emerging Cross-Sectional Technologies 0 Active
US10208634B2 Columnar hydraulic tappet Mechanical Engineering; Lighting; Heating 0 Active
US11407852B2 Modified polyisocyanate Chemistry; Metallurgy 0 Active
US10982391B2 High-efficiency strength program used for making paper in higher charge demand system Textiles; Paper 0 Active
USD1081154S1 Barbecue cleaning brush General 0 Active
US10287930B2 Lightweight rocker arm frame and curved crown part forming process thereof Emerging Cross-Sectional Technologies 0 Active
US12333614B2 Quality, availability and AI model predictions Physics 0 Active

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