Passive negative ion generator

Plasma arc ignition devices

Plasma method of producing selective particle sized oxide,...

Plasma plug for an internal combustion engine

Plasma superconfinement generator for producing positive or...

Plastic dielectric composition and shielded spark plug terminal

Platinum-coated igniters

Plug cap apparatus

Polymeric weathershed surge arrester and method

Polyphase alternating current multi-electrode discharger,...

Portable automotive spark voltage tester

Portable ion generator

Power converter

Power spark gap high current conduction

Precombustion chamber device

Primary surge protector for broadband coaxial system

Process for charging a layer, apparatus for carrying out the...

Process for preparing an igniter plug, and igniter plug thus...

Process for the electrographic recording of charge images

Producing electrosuspensions