Gregory D. Kleppen

📍 Watford City, ND: #5 of 12 inventorsTop 45%

🗺 North Dakota: #797 of 2,395 inventorsTop 35%

Overall (All Time): #1,953,271 of 4,157,543Top 50%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
9958087	Oil tank valve dart that holds oil tank valve closed and that further holds seal to be destroyed to remove dart	—	2018-05-01
D769420	Oil valve sealing dart	—	2016-10-18