Assignee
H L & H TIMBER PROD
ZA·8 granted patents·142 citations·filing 1985–1997
Top patents by PatentIndex Score
8 records- 0166US5454866AGrout compositionH L & H TIMBER PROD·Filed 1995·Granted Oct 3, 1995·33 cites·26 claims
- 0252US5868527AMine propsH L & H TIMBER PROD·Filed 1997·Granted Feb 9, 1999·25 cites·13 claims
- 0349US5149228AProp preloading apparatusH L & H TIMBER PROD·Filed 1991·Granted Sep 22, 1992·19 cites·11 claims
- 0446US5435670ASpacer assembly and methodH L & H TIMBER PROD·Filed 1993·Granted Jul 25, 1995·18 cites·8 claims
- 0542US5318387AYieldable load supportH L & H TIMBER PROD·Filed 1992·Granted Jun 7, 1994·15 cites·22 claims
- 0636US5547317AMine support systemH L & H TIMBER PROD·Filed 1993·Granted Aug 20, 1996·12 cites·8 claims
- 0735US5669739APrestressing of mine propsH L & H TIMBER PROD·Filed 1996·Granted Sep 23, 1997·12 cites·21 claims
- 0823US4628658ASupport packH L & H TIMBER PROD·Filed 1985·Granted Dec 16, 1986·8 cites·19 claims
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