Combined semiconductor metrology system
US-9553034-B1 · Jan 24, 2017 · US
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Zhao Guoheng patents
Zhao Guoheng holds 4 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 4 |
| Recent patents | 0 |
| First publication | Apr 7, 2015 |
| Latest publication | Jan 24, 2017 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Wafer inspection
US-9279774-B2 · Mar 8, 2016 · US
Dark field inspection system with ring illumination
US-9176072-B2 · Nov 3, 2015 · US
Composite polarizer with adjustable polarization angles
US-9001327-B2 · Apr 7, 2015 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Combined semiconductor metrology system
US-9553034-B1 · Jan 24, 2017 · US
Wafer inspection
US-9279774-B2 · Mar 8, 2016 · US
Dark field inspection system with ring illumination
US-9176072-B2 · Nov 3, 2015 · US
Composite polarizer with adjustable polarization angles
US-9001327-B2 · Apr 7, 2015 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Physics | 4 |
| Electricity | 3 |