David Han
20Patents
6h-index
18Co-inventors
66Inventor score
Filing activity: Apr 20, 1984 → Aug 10, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD430142S | Combined speaker and base therefor | General | 80 | Expired |
| US8024234B1 | System and methods for mapping price and location of tickets in an event venue | Physics | 68 | Active |
| US7245735B2 | Earmuff structure for headset or ear protector | Electricity | 43 | Expired |
| US9946165B2 | Methods and apparatus for obtaining diagnostic information relating to an industrial process | Physics | 13 | Active |
| US10274834B2 | Methods and apparatus for obtaining diagnostic information relating to an industrial process | Physics | 10 | Active |
| US9530108B2 | System and methods for mapping price and location of tickets in an event venue | Physics | 8 | Active |
| US4560153A | Fixing tool for square frame | Performing Operations; Transporting | 6 | Expired |
| US8386334B2 | System and methods for mapping price and location of tickets in an event venue | Physics | 5 | Active |
| US10642162B2 | Methods and apparatus for obtaining diagnostic information relating to an industrial process | Physics | 4 | Active |
| USD435351S | Picture frame | General | 4 | Expired |
| US6961436B1 | Noise-protecting arrangement for ear protector | Human Necessities | 2 | Expired |
| US11295244B2 | System and methods for mapping price and location of tickets in an event venue | Physics | 2 | Active |
| US11940740B2 | Methods and apparatus for obtaining diagnostic information relating to an industrial process | Physics | 1 | Active |
| US9035397B2 | Gate structure and manufacturing method thereof | Electricity | 1 | Active |
| US10595962B2 | Ultrasonic endodontic surgical instrument | Human Necessities | 0 | Active |
| US12287584B2 | Methods and apparatus for obtaining diagnostic information relating to an industrial process | Physics | 0 | Active |
| USD1033649S1 | Vision focus device | General | 0 | Active |
| US11300574B2 | Methods for treating breast cancer and for identifying breast cancer antigens | Physics | 0 | Active |
| US11385550B2 | Methods and apparatus for obtaining diagnostic information relating to an industrial process | Physics | 0 | Active |
| US12042711B2 | Golf swing training device | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.