Ameritherm, Inc.
26Patents
15Active
26Granted
44Portfolio score
Filing activity: Jul 10, 1998 → Mar 14, 2011 · 13 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6348679B1 | RF active compositions for use in adhesion, bonding and coating | Emerging Cross-Sectional Technologies | 176 | Expired |
| US6157258A | High frequency power amplifier | Electricity | 64 | Expired |
| US6072362A | System for enabling a full-bridge switch-mode amplifier to recover all reactive energy | Electricity | 59 | Expired |
| US6255635A | System and method for providing RF power to a load | Electricity | 47 | Expired |
| US6521874B2 | RF power supply | Electricity | 47 | Expired |
| US6359267B1 | Induction heating system | Performing Operations; Transporting | 39 | Expired |
| US6316756A | Resonant frequency tracking system and method for use in a radio frequency (RF) power supply | Electricity | 39 | Expired |
| US6664881B1 | Efficient, low leakage inductance, multi-tap, RF transformer and method of making same | Electricity | 38 | Expired |
| US6730894B2 | Resonant frequency tracking system and method for use in a radio frequency (RF) power supply | Electricity | 33 | Expired |
| US7489530B2 | High voltage full bridge circuit and method for operating the same | Electricity | 33 | Active |
| US6861629B2 | Induction furnace for heating a workpiece in an inert atmosphere or vacuum | Electricity | 33 | Expired |
| US7804045B2 | Portable food heater | Human Necessities | 33 | Active |
| US6271508A | System and method for providing RF power to a load | Electricity | 32 | Expired |
| US7551011B2 | Constant phase angle control for frequency agile power switching systems | Electricity | 31 | Active |
| US7626463B2 | Automatic frequency compensation for pulse width modulated RF level control | Electricity | 30 | Active |
| US8481893B2 | Portable food heater | Human Necessities | 14 | Active |
| US7829827B2 | Radio frequency (RF) induction cooking food heater | Electricity | 8 | Active |
| US7995362B2 | High voltage full bridge circuit and method for operating the same | Electricity | 4 | Active |
| US7787268B2 | Power switching system to increase induction heating to a load from available AC mains power | Electricity | 2 | Active |
| US7906997B2 | Constant phase angle control for frequency agile power switching systems | Electricity | 2 | Active |
| US9000335B2 | Food heater | Electricity | 2 | Active |
| US9167631B2 | Power system component protection system for use with an induction heating system | Electricity | 0 | Active |
| US8283985B2 | Automatic frequency compensation for pulse width modulated RF level control | Electricity | 0 | Active |
| US8803047B2 | Induction heating systems and methods for producing an object having a varying hardness along the length of the object | Emerging Cross-Sectional Technologies | 0 | Active |
| US8331115B2 | Power switching system to increase induction heating to a load from available AC mains power | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.