David Cheng
1Patents
0Active
1Granted
27Portfolio score
Filing activity: Nov 25, 1992 → Nov 25, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5479108A | Method and apparatus for handling wafers | Emerging Cross-Sectional Technologies | 161 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.