Stuttgart
Germany
2
2026-01-15
Paul Justus Sieffert from Stuttgart, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
PRECHAMBER SPARK PLUG
NOBLE METAL PIN FOR SPARK PLUG ELECTRODE, SPARK PLUG ELECTRODES, SPARK PLUG AND METHOD OF PRODUCING THE SPARK PLUG ELECTRODES
7012446 ⎘