4. Internal-combustion engines
  5. Charge forming device
  6. Fuel injection system

Hellmut Freudenberg

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Apparatus and method for driving a piezoelectrically controlled

Internal-combustion engines – Charge forming device – Fuel injection system
Patent

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Device and method for controlling at least one capacitive actuat

Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent

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Device and method for driving a capacitive actuator

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Device and method for driving a capacitive actuator

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent

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Device and method for driving at least one capacitive actuator

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Reexamination Certificate

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Profile ID: LFUS-PAI-P-42490

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