Dual medium filter for ion and particle filtering during semiconductor processing
US-9607864-B2 · Mar 28, 2017 · US
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Zhang John H patents
Zhang John H holds 4 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 4 |
| Recent patents | 0 |
| First publication | Mar 31, 2015 |
| Latest publication | Mar 28, 2017 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Drying apparatus with exhaust control cap for semiconductor wafers and associated methods
US-9254510-B2 · Feb 9, 2016 · US
Endpoint detector for a semiconductor processing station and associated methods
US-9002493-B2 · Apr 7, 2015 · US
Adjustable brush cleaning apparatus for semiconductor wafers and associated methods
US-8992692-B2 · Mar 31, 2015 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Dual medium filter for ion and particle filtering during semiconductor processing
US-9607864-B2 · Mar 28, 2017 · US
Drying apparatus with exhaust control cap for semiconductor wafers and associated methods
US-9254510-B2 · Feb 9, 2016 · US
Endpoint detector for a semiconductor processing station and associated methods
US-9002493-B2 · Apr 7, 2015 · US
Adjustable brush cleaning apparatus for semiconductor wafers and associated methods
US-8992692-B2 · Mar 31, 2015 · US
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| H10P72/0412 | 2 |
| A46B13/001 | 2 |
| H01L21/67046 | 2 |
| H10P72/0414 | 1 |
| H10P72/0411 | 1 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Electricity | 4 |
| Operations & Transport | 3 |
| Human Necessities | 2 |
| Cross-Sectional Technologies | 2 |
| Mechanical Engineering | 1 |