Heikki Seppä
37Patents
8h-index
32Co-inventors
75Inventor score
Filing activity: Jul 30, 1992 → May 22, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7248128B2 | Reference oscillator frequency stabilization | Electricity | 139 | Expired |
| US9011762B2 | Method for manufacturing conductors and semiconductors | Electricity | 65 | Active |
| US5488295A | Method and apparatus for cancelling noise of a low-noise sensor | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7145402B2 | Multi-mode frequency synthesizer with temperature compensation | Electricity | 26 | Expired |
| US5824914A | Method and arrangement for measuring the flow velocity of a liquid, particularly water | Physics | 15 | Expired |
| US7714593B2 | Radiofrequency based sensor arrangement and a method | Emerging Cross-Sectional Technologies | 12 | Expired |
| US9202093B2 | Methods for enhancing the accuracy of environment measurements using a remote-access apparatus | Emerging Cross-Sectional Technologies | 9 | Active |
| US10145729B2 | Intermodulation sensor platform based on mechanical resonator | Electricity | 8 | Active |
| US8029722B2 | Method of fabricating structures based on nanoparticles | Emerging Cross-Sectional Technologies | 7 | Active |
| US6066948A | Squid magnetometer having resistor-capacitor damping circuits | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6819246B1 | Method and apparatus for converting electromagnetic energy of objects | Electricity | 7 | Expired |
| US5354130A | Method and apparatus for measuring the temperature of an electrically conductive material | Physics | 6 | Expired |
| US8850893B2 | Device for measuring pressure, variation in acoustic pressure, a magnetic field, acceleration, vibration, or the composition of a gas | Physics | 3 | Active |
| US6513388B1 | Micromechanical precision silicon scale | Physics | 3 | Expired |
| US9322906B2 | Wireless MEMS sensor and method of reading the same | Electricity | 3 | Active |
| US9043992B2 | Method and system for object localization | Physics | 3 | Active |
| US7259555B2 | Method for determining the hardening depth of steel | Physics | 3 | Expired |
| US6657442B1 | Micromechanical alternating and direct voltage reference apparatus | Physics | 3 | Expired |
| US7671721B2 | Remote sensor, device and method for activating selected remote sensor components | Physics | 2 | Active |
| US9476975B2 | Non-linear resonating sensor and a method | Physics | 2 | Active |
| US8136403B2 | Micromechanical sensor, sensor array and method | Physics | 2 | Active |
| US6734353B2 | Method for attenuating interference in a magnetically shielded room | Electricity | 2 | Expired |
| US6630657B1 | Method and system for electrically controlling the spacing between micromechanical electrodes | Physics | 2 | Expired |
| US6049211A | Method and apparatus for determination of fiber orientation in paper or paperboard web | Physics | 2 | Expired |
| US7808254B2 | Micromechanical microwave power meter | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.