Assignee
YAMATO KOGYO KK
JP·9 granted patents·102 citations·filing 1987–1999
Top patents by PatentIndex Score
9 records- 0159US5704570AWelded nose rail used for crossingYAMATO KOGYO KK·Filed 1993·Granted Jan 6, 1998·14 cites·4 claims
- 0250US4838318AElbow cover for an elbow in pipeworkYAMATO KOGYO KK·Filed 1988·Granted Jun 13, 1989·18 cites·10 claims
- 0349US4830061APlastics cover for pipingYAMATO KOGYO KK·Filed 1988·Granted May 16, 1989·17 cites·4 claims
- 0448USD312499SElbow cover for insulated pipeworkYAMATO KOGYO KK·Filed 1988·Granted Nov 27, 1990·6 cites·1 claims
- 0536US6138958ASpring rail frogYAMATO KOGYO KK·Filed 1998·Granted Oct 31, 2000·12 cites·12 claims
- 0633US6257494B1Base structure of a turnoutYAMATO KOGYO KK·Filed 1999·Granted Jul 10, 2001·14 cites·3 claims
- 0733US5782437ASpring rail frog having bendable rail with modified cross-sectionYAMATO KOGYO KK·Filed 1996·Granted Jul 21, 1998·10 cites·17 claims
- 0831US4846512AProtective cylinder for pipe covering materialYAMATO KOGYO KK·Filed 1987·Granted Jul 11, 1989·6 cites·4 claims
- 0927US5820702AWelded nose rail used for crossingYAMATO KOGYO KK·Filed 1996·Granted Oct 13, 1998·5 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →