Doug Playter

CH Ch2M Hill: 1 patents #17 of 61Top 30%

Overall (All Time): #3,655,001 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5927903	Energy dissipating dolphin	—	1999-07-27