Inventor
NASATKA RALPH G
US8 patents
⚠️ This page may combine multiple inventors who share the name “NASATKA RALPH G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NASATKA RALPH G
7 patentsUS4850737AJul 25, 1989
Hydraulic spring vehicle barricade and hydraulic circuit therefor
NASATKA RALPH G57 citations95
US5288164AFeb 22, 1994
Combined vehicle barrier
NASATKA RALPH G68 citations94
US5228237AJul 20, 1993
Vehicle barrier
NASATKA RALPH G63 citations94
US4630395ADec 23, 1986
Portable vehicle barricade or portable maximum security barrier
NASATKA RALPH G68 citations94
US4826349AMay 2, 1989
Underground vehicle barricade
NASATKA RALPH G27 citations91
US4574523AMar 11, 1986
Vehicle barricade or maximum security barrier
NASATKA RALPH G36 citations91
US4818136AApr 4, 1989
Hydraulic vehicle barricade and method
NASATKA RALPH G34 citations90