Canton, Michigan
United States
6
2017-08-17
The entities that hold a legal rights for patent applications filed by inventor Verhoff Curtis W.:
Curtis W. Verhoff from Canton, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Spark plug having firing pad
#2 | 2014-09-18Spark plug having multi-layer sparking component attached to ground electrode
#3 | 2014-07-31Spark plug having firing pad
#4 | 2014-04-24Spark plug having firing pad
#5 | 2014-02-13Spark plug having firing pad
#6 | 2013-12-05Spark plug having a thin noble metal firing pad
554524 ⎘