Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11047322 | Split exhaust engine with idle check valve | Joseph Norman Ulrey, John Erik Mikael Hellstrom, Daniel Paul Madison, Andres Ceballos | 2021-06-29 |
CP
Christopher John Piper
Overall (2021): #496,503 of 548,734Top 95%
1
Patents 2021