Derk Reefman
25Patents
7h-index
56Co-inventors
68Inventor score
Filing activity: Dec 18, 1998 → Nov 9, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8395914B2 | DC-to-DC converter comprising a reconfigurable capacitor unit | Electricity | 83 | Active |
| US8085524B2 | Integrated capacitor arrangement for ultrahigh capacitance values | Electricity | 69 | Active |
| US8193685B2 | Thin film detector for presence detection | Emerging Cross-Sectional Technologies | 20 | Active |
| US6975257B2 | Sigma-delta modulation | Electricity | 17 | Expired |
| US6819275B2 | Audio signal compression | Electricity | 8 | Expired |
| US6690812B2 | Watermark insertion and extraction into and from a high quality signal is performed using sample rate conversion | Electricity | 7 | Expired |
| US8395472B2 | Planar, monolithically integrated coil | Electricity | 7 | Active |
| US11638576B2 | Wireless intraluminal imaging device and associated devices, systems, and methods | Human Necessities | 7 | Active |
| US11583193B2 | Wireless intraluminal device and system | Human Necessities | 7 | Active |
| US8866480B2 | Inductively powered electric component of an MRI apparatus | Physics | 6 | Active |
| US7325131B2 | Robust watermark for DSD signals | Physics | 5 | Expired |
| US8729665B2 | Integration substrate with a ultra-high-density capacitor and a through-substrate via | Electricity | 4 | Active |
| US8610404B2 | Charge pump DC-DC converter comprising solid state batteries | Emerging Cross-Sectional Technologies | 4 | Active |
| US6108401A | Method of standard-less phase analysis by means of a diffractogram | Physics | 4 | Expired |
| US7302303B2 | Mixing system for mixing oversampled digital audio signals | Physics | 3 | Expired |
| US8310024B2 | Assembly, chip and method of operating | Electricity | 3 | Active |
| US7345606B2 | DA-converter system and a method for converting a multi-bit digital signal to an analog signal | Electricity | 2 | Expired |
| US10365338B2 | Superconducting coil support device and method and apparatus including superconducting coil support device | Electricity | 2 | Active |
| US7808225B2 | Parallel arranged power supplies | Electricity | 2 | Active |
| US6606043B2 | Method and arrangement for synchronizing a sigma delta-modulator | Physics | 1 | Expired |
| US6370490B1 | Method of determining an intrinsic spectrum from a measured spectrum | Physics | 1 | Expired |
| US7330142B2 | Sigma-delta modulator with a quantizer/gain element | Electricity | 0 | Expired |
| US7127644B2 | Method and arrangement for concealing errors | Physics | 0 | Expired |
| US7218263B2 | Generating bit-streams with higher compression gains | Electricity | 0 | Expired |
| US8634445B2 | Pulse modulation and demodulation in a multiband UWB communication system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.