Assignee
AMSTED IND INC
US·315 granted patents·2 pending applications·8,672 citations·filing 1974–2008
Top patents by PatentIndex Score
317 records- 0196US6142219AClosed circuit heat exchange system and method with reduced water consumptionAMSTED IND INC·Filed 1999·Granted Nov 7, 2000·112 cites·45 claims
- 0296US4258628AArticulated railway couplingAMSTED IND INC·Filed 1979·Granted Mar 31, 1981·79 cites·2 claims
- 0395US4605133ACoupler knuckleAMSTED IND INC·Filed 1983·Granted Aug 12, 1986·80 cites·1 claims
- 0495US4363278AResilient railway truck bearing adaptorAMSTED IND INC·Filed 1980·Granted Dec 14, 1982·89 cites·2 claims
- 0595US4206849ATail portion for railroad car coupler knuckleAMSTED IND INC·Filed 1978·Granted Jun 10, 1980·73 cites·2 claims
- 0695US4186914ADual rate spring device for railroad car trucksAMSTED IND INC·Filed 1978·Granted Feb 5, 1980·73 cites·4 claims
- 0794US5170633ADesiccant based air conditioning systemAMSTED IND INC·Filed 1991·Granted Dec 15, 1992·149 cites·17 claims
- 0894US4434720AMulti-rate side bearing for a railway truckAMSTED IND INC·Filed 1982·Granted Mar 6, 1984·68 cites·9 claims
- 0994US4413569ASteering railroad truckAMSTED IND INC·Filed 1981·Granted Nov 8, 1983·76 cites·7 claims
- 1094US4370933ARailway car truck bolster assemblyAMSTED IND INC·Filed 1981·Granted Feb 1, 1983·71 cites·1 claims
- 1194US4256041ADamping railway truck friction shoeAMSTED IND INC·Filed 1979·Granted Mar 17, 1981·71 cites·2 claims
- 1294US4202164ALubricated plastic impregnated aramid fiber ropeAMSTED IND INC·Filed 1978·Granted May 13, 1980·79 cites·2 claims
- 1394US4167907ARailway car truck friction damper assemblyAMSTED IND INC·Filed 1977·Granted Sep 18, 1979·63 cites·5 claims
- 1493US6662853B2Method of making bolsters and sideframes for railway car trucksAMSTED IND INC·Filed 2003·Granted Dec 16, 2003·30 cites·37 claims
- 1593US6622776B2Method of making sideframes for railway car trucksAMSTED IND INC·Filed 2000·Granted Sep 23, 2003·35 cites·22 claims
- 1693US6446820B1Railcar draft gear assembly and systemAMSTED IND INC·Filed 2000·Granted Sep 10, 2002·76 cites·27 claims
- 1793US4103623ASquaring frictionally snubbed railway car truckAMSTED IND INC·Filed 1976·Granted Aug 1, 1978·63 cites·9 claims
- 1893US4078501APedestal roof wear linerAMSTED IND INC·Filed 1977·Granted Mar 14, 1978·73 cites·3 claims
- 1993US4024958ACoupler knuckle contourAMSTED IND INC·Filed 1976·Granted May 24, 1977·55 cites·4 claims
- 2092US4336758ARailroad car sill-articulating device member connectionAMSTED IND INC·Filed 1980·Granted Jun 29, 1982·66 cites·7 claims
- 2192US4192240APedestal roof wear linerAMSTED IND INC·Filed 1978·Granted Mar 11, 1980·85 cites·4 claims
- 2292US4034681APedestal roof wear linerAMSTED IND INC·Filed 1975·Granted Jul 12, 1977·60 cites·1 claims
- 2391US6681943B2Railcar draft gear assembly and systemAMSTED IND INC·Filed 2002·Granted Jan 27, 2004·52 cites·18 claims
- 2491US5752564ARailway truck castings and method and cores for making castingsAMSTED IND INC·Filed 1997·Granted May 19, 1998·62 cites·39 claims
- 2591US4887422ARope with fiber core and method of forming sameAMSTED IND INC·Filed 1988·Granted Dec 19, 1989·121 cites·20 claims
- 2691US4674412AElastomeric bearing pad with unlike threaded fastenersAMSTED IND INC·Filed 1985·Granted Jun 23, 1987·83 cites·6 claims
- 2791US4606183ALubricated and thermoplastic impregnated wire ropeAMSTED IND INC·Filed 1984·Granted Aug 19, 1986·51 cites·13 claims
- 2891US4179995ASnubbed railroad car truckAMSTED IND INC·Filed 1977·Granted Dec 25, 1979·61 cites·3 claims
- 2990US5967053ASideframes for railway trucksAMSTED IND INC·Filed 1998·Granted Oct 19, 1999·54 cites·6 claims
- 3090US5794538ARailcar truck bearing adapter constructionAMSTED IND INC·Filed 1997·Granted Aug 18, 1998·87 cites·20 claims
- 3190US5509358ARailcar truck bearing adapter constructionAMSTED IND INC·Filed 1994·Granted Apr 23, 1996·90 cites·9 claims
- 3290US5312007ASlackless railway coupler with draft/buff gearAMSTED IND INC·Filed 1992·Granted May 17, 1994·72 cites·5 claims
- 3390US5138954AFreight railcar truck and bolster for outboard support of car body with side bearings located entirely outside of the sideframes for receiving the entire vehicle weightAMSTED IND INC·Filed 1992·Granted Aug 18, 1992·65 cites·18 claims
- 3490US4953471AFriction shoe assembly for repair of worn railway truckAMSTED IND INC·Filed 1989·Granted Sep 4, 1990·62 cites·12 claims
- 3590US4825776ARailway truck friction shoe with resilient padsAMSTED IND INC·Filed 1987·Granted May 2, 1989·63 cites·6 claims
- 3690US4552074APrimary suspension for railroad car truckAMSTED IND INC·Filed 1983·Granted Nov 12, 1985·69 cites·4 claims
- 3790US4491075ASnubbed railway car truckAMSTED IND INC·Filed 1982·Granted Jan 1, 1985·65 cites·1 claims
- 3890US4274340ARailway car truck frictional snubbing arrangementAMSTED IND INC·Filed 1979·Granted Jun 23, 1981·60 cites·2 claims
- 3989US6425334B1Friction shoe for freight car truckAMSTED IND INC·Filed 2000·Granted Jul 30, 2002·68 cites·7 claims
- 4089US5111753ALight weight fatigue resistant railcar truck bolsterAMSTED IND INC·Filed 1990·Granted May 12, 1992·77 cites·5 claims
- 4189US5095823AFriction shoe for railcar truckAMSTED IND INC·Filed 1990·Granted Mar 17, 1992·69 cites·4 claims
- 4289US4637319ABolster friction shoe pocketAMSTED IND INC·Filed 1984·Granted Jan 20, 1987·59 cites·2 claims
- 4389US4363276ARailroad car truck side frame - bolster connectionAMSTED IND INC·Filed 1980·Granted Dec 14, 1982·59 cites·1 claims
- 4489US4219452AComposite friction elementAMSTED IND INC·Filed 1978·Granted Aug 26, 1980·62 cites·16 claims
- 4588US6149376APipe moving method, apparatus and systemAMSTED IND INC·Filed 1998·Granted Nov 21, 2000·31 cites·19 claims
- 4688US5572931ARailcar truck bearing adapter constructionAMSTED IND INC·Filed 1994·Granted Nov 12, 1996·69 cites·11 claims
- 4788US5524551ASpring-pack assembly for a railway truck bolster assemblyAMSTED IND INC·Filed 1994·Granted Jun 11, 1996·66 cites·15 claims
- 4887US5746137ARailcar truck bearing adapter constructionAMSTED IND INC·Filed 1996·Granted May 5, 1998·70 cites·5 claims
- 4987US5193352AAir pre-cooler method and apparatusAMSTED IND INC·Filed 1991·Granted Mar 16, 1993·82 cites·36 claims
- 5087US5086708ARailcar truck bolster with immobilized friction shoesAMSTED IND INC·Filed 1990·Granted Feb 11, 1992·60 cites·4 claims
Showing the top 50 of 317 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when AMSTED IND 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 →