Vaparaiso, Indiana
United States
4
2020-09-10
The entities that hold a legal rights for patent applications filed by inventor Kolb John:
John Kolb from Vaparaiso, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Safety procedure for valve replacement and leak detection on a tank car
#2 | 2020-09-10Testing mechanism for valve replacement and leak detection on a tank car
#3 | 2020-02-13Safety procedure and testing mechanism for valve replacement and leak detection on a tank car
#4 | 2016-09-29Safety procedure and testing mechanism for valve replacement and leak detection on a tank car
1664080 ⎘