Donald Folker
50Patents
6h-index
22Co-inventors
72Inventor score
Filing activity: Sep 27, 1995 → Oct 20, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5777539A | Inductor using multilayered printed circuit board for windings | Electricity | 49 | Expired |
| US8498124B1 | Magnetic circuit board stacking component | Electricity | 25 | Active |
| US8242870B1 | Magnetic component with a notched magnetic core structure | Electricity | 14 | Active |
| US9837194B1 | Output transformer and resonant inductor in a combined magnetic structure | Electricity | 12 | Active |
| US8406007B1 | Magnetic circuit board connector component | Electricity | 7 | Active |
| US9183974B1 | Bobbin apparatus for reducing gap losses in magnetic components | Electricity | 6 | Active |
| US9396865B1 | Magnetic component with auxiliary winding circuit board | Electricity | 6 | Active |
| US9980396B1 | Low profile magnetic component apparatus and methods | Electricity | 5 | Active |
| US8031040B1 | Magnetic component having a bobbin structure with integrated winding | Electricity | 5 | Active |
| US9799442B1 | Magnetic core structures for magnetic assemblies | Electricity | 5 | Active |
| US9093212B1 | Stacked step gap core devices and methods | Electricity | 4 | Active |
| US9842683B1 | Bobbin and E-core assembly configuration and method for E-cores and EI-cores | Electricity | 4 | Active |
| US9666355B1 | Common mode inductor assembly with magnetic I bar defined leakage path | Electricity | 4 | Active |
| US5675192A | Printed circuit board with header for magnetics all mounted to mother board | Electricity | 3 | Expired |
| US8212643B1 | Bobbin for an inductive electronic component | Electricity | 3 | Active |
| US10650959B1 | Inductor with flux path for high inductance at low load | Electricity | 3 | Active |
| US9295145B1 | Multifunction magnetic device with multiple cores and coils | Electricity | 2 | Active |
| US10930423B1 | Single magnetic assembly combining three independent magnetics using a modified “E” core with four winding windows | Electricity | 2 | Active |
| US9293246B1 | Magnetic component with integrated component circuit board | Electricity | 2 | Active |
| US8310160B1 | Anti-arcing circuit for current-fed parallel resonant inverter | Electricity | 2 | Active |
| US9362044B1 | Magnetic component with multiple pin row bobbin | Electricity | 2 | Active |
| US9680244B1 | Header apparatus for providing electrical connection to a printed circuit board, and daughter card and circuit assembly incorporating the header apparatus | Electricity | 2 | Active |
| US8116089B1 | Method and apparatus for securing a magnetic component to a printed circuit board for soldering | Electricity | 2 | Active |
| US10709024B1 | Low-cost SMT printed circuit board connector | Electricity | 1 | Active |
| US9721716B1 | Magnetic component having a core structure with curved openings | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.