Assignee
KERSHAW MFG
US·16 granted patents·285 citations·filing 1979–1996
Top patents by PatentIndex Score
16 records- 0188US5127335APoints and crossing changerKERSHAW MFG·Filed 1990·Granted Jul 7, 1992·32 cites·15 claims
- 0282US4563826AApparatus for removing ballast from beneath a railroad trackKERSHAW MFG·Filed 1984·Granted Jan 14, 1986·44 cites·5 claims
- 0371US5655455ATie plate placerKERSHAW MFG·Filed 1996·Granted Aug 12, 1997·47 cites·27 claims
- 0463US4850123ABallast removal apparatusKERSHAW MFG·Filed 1988·Granted Jul 25, 1989·18 cites·23 claims
- 0560US4967847AMethod and apparatus for cleaning ballastKERSHAW MFG·Filed 1990·Granted Nov 6, 1990·16 cites·10 claims
- 0656US4809615AMethod and apparatus for re-railing working platformsKERSHAW MFG·Filed 1988·Granted Mar 7, 1989·23 cites·9 claims
- 0755US4222418AApparatus for mounting flail members on a rotatable drumKERSHAW MFG·Filed 1979·Granted Sep 16, 1980·15 cites·7 claims
- 0852US4674208ABallast removing apparatusKERSHAW MFG·Filed 1986·Granted Jun 23, 1987·17 cites·8 claims
- 0950US4705115AMethod and apparatus for reconditioning ballast along a railroad trackKERSHAW MFG·Filed 1986·Granted Nov 10, 1987·16 cites·14 claims
- 1049US5099766ABallast wagon for reviewing railway ballast with rotary storage drumsKERSHAW MFG·Filed 1990·Granted Mar 31, 1992·10 cites·15 claims
- 1145US4744303ARailway track tamping machineKERSHAW MFG·Filed 1987·Granted May 17, 1988·16 cites·11 claims
- 1244US4882860AApparatus for removing ballast from beneath railroad tracksKERSHAW MFG·Filed 1988·Granted Nov 28, 1989·12 cites·12 claims
- 1337US4890557AInterstitial ballast vibratorKERSHAW MFG·Filed 1989·Granted Jan 2, 1990·7 cites·23 claims
- 1435US4848426AAdzer cribberKERSHAW MFG·Filed 1989·Granted Jul 18, 1989·6 cites·9 claims
- 1532US4843967ACompaction tamperKERSHAW MFG·Filed 1988·Granted Jul 4, 1989·4 cites·16 claims
- 1626US4744304ARailway track tamping machineKERSHAW MFG·Filed 1987·Granted May 17, 1988·2 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when KERSHAW MFG 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 →