Joerg Petzold
6Patents
3h-index
9Co-inventors
46Inventor score
Filing activity: Mar 23, 1990 → Jul 17, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6563411B1 | Current transformer with direct current tolerance | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7042310B1 | High-pass branch of a frequency separating filter for ADSL systems | Electricity | 5 | Expired |
| US7358844B2 | Current transformer core and method for producing a current transformer core | Emerging Cross-Sectional Technologies | 4 | Active |
| US5074932A | Fine-crystalline iron-based alloy core for an interface transformer | Electricity | 2 | Expired |
| US8344830B2 | Magnet core; method for its production and residual current device | Emerging Cross-Sectional Technologies | 1 | Active |
| US7861403B2 | Current transformer cores formed from magnetic iron-based alloy including final crystalline particles and method for producing same | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.