Assignee
NAT CASTINGS INC
US·17 granted patents·672 citations·filing 1985–1998
Top patents by PatentIndex Score
17 records- 0190US5027716AStabilized swing-motion truck for railway carsNAT CASTINGS INC·Filed 1989·Granted Jul 2, 1991·62 cites·41 claims
- 0287US5954212ALightweight knuckle for a railroad car couplerNAT CASTINGS INC·Filed 1998·Granted Sep 21, 1999·67 cites·20 claims
- 0387US5632208AMulti-axle railroad car truckNAT CASTINGS INC·Filed 1995·Granted May 27, 1997·67 cites·21 claims
- 0487US5463964ARocker seat connectionNAT CASTINGS INC·Filed 1994·Granted Nov 7, 1995·61 cites·21 claims
- 0586US5241913AReinforced bolster for a railroad car truckNAT CASTINGS INC·Filed 1992·Granted Sep 7, 1993·56 cites·5 claims
- 0686US5239932AForce dampening mechanism of a railroad car truckNAT CASTINGS INC·Filed 1992·Granted Aug 31, 1993·59 cites·5 claims
- 0785US4867071ATruck-mounted articulated connector for railway carsNAT CASTINGS INC·Filed 1988·Granted Sep 19, 1989·46 cites·20 claims
- 0883US5226369ASideframe for a railroad car truckNAT CASTINGS INC·Filed 1992·Granted Jul 13, 1993·48 cites·7 claims
- 0980US5327837ABolster of a railroad car truck with varying cross-sectional shape to provide less torsional rigidity at endsNAT CASTINGS INC·Filed 1992·Granted Jul 12, 1994·43 cites·8 claims
- 1076US4645085AMethod of enhancing rigidity in a railway car coupler knuckleNAT CASTINGS INC·Filed 1985·Granted Feb 24, 1987·39 cites·4 claims
- 1174US5139161AAutomatic actuator for coupler knuckle-assembly of a railway passenger carNAT CASTINGS INC·Filed 1991·Granted Aug 18, 1992·37 cites·16 claims
- 1265US5507400ASlackless drawbar or coupler with swivel mountingNAT CASTINGS INC·Filed 1994·Granted Apr 16, 1996·27 cites·20 claims
- 1352US4744308ACombined center plate/center filler for railway freight carsNAT CASTINGS INC·Filed 1987·Granted May 17, 1988·16 cites·10 claims
- 1448US5524552ASingle axle truck for large railroad carsNAT CASTINGS INC·Filed 1994·Granted Jun 11, 1996·12 cites·20 claims
- 1546US5131548ASlackless, resilient drawbar system for a railway carNAT CASTINGS INC·Filed 1991·Granted Jul 21, 1992·20 cites·6 claims
- 1636US4766819ASaddle frame for passive steering single-axle truck for a railway freight carNAT CASTINGS INC·Filed 1987·Granted Aug 30, 1988·5 cites·16 claims
- 1735US5593051ASlackless cushioning device for railroad carsNAT CASTINGS INC·Filed 1994·Granted Jan 14, 1997·7 cites·32 claims
Join the waitlist — get patent alerts
Get an alert when NAT CASTINGS INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →