Power factor controller with error feedback, and a method of operating such a power factor controller
US-9712047-B2 · Jul 18, 2017 · US
This page is not indexed by search engines while we improve data quality.
Zhang Cheng patents
Zhang Cheng holds 2 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 2 |
| Recent patents | 0 |
| First publication | Dec 27, 2016 |
| Latest publication | Jul 18, 2017 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Electricity | 2 |
| Cross-Sectional Technologies | 2 |
| Physics | 1 |