Assignee
JENNMAR CORP
US·75 granted patents·2 pending applications·1,741 citations·filing 1976–2007
Top patents by PatentIndex Score
77 records- 0196US4518292AMethod and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formationJENNMAR CORP·Filed 1983·Granted May 21, 1985·52 cites·8 claims
- 0296US4419805AMethod for combining resin bonding and mechanical anchoring of a bolt in a rock formationJENNMAR CORP·Filed 1980·Granted Dec 13, 1983·51 cites·8 claims
- 0395US4516885AMethod and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formationJENNMAR CORP·Filed 1984·Granted May 14, 1985·46 cites·9 claims
- 0495US4413930AMethod and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formationJENNMAR CORP·Filed 1981·Granted Nov 8, 1983·49 cites·15 claims
- 0588US4051683AMethod and apparatus for supporting a mine roofJENNMAR CORP·Filed 1976·Granted Oct 4, 1977·38 cites·19 claims
- 0687US5511909ACable bolt and method of use in supporting a rock formationJENNMAR CORP·Filed 1994·Granted Apr 30, 1996·68 cites·23 claims
- 0787US4861197ARoof bolt systemJENNMAR CORP·Filed 1987·Granted Aug 29, 1989·61 cites·13 claims
- 0886US7296950B1Point anchor coated mine roof boltJENNMAR CORP·Filed 2006·Granted Nov 20, 2007·22 cites·20 claims
- 0985US5919006ATensionable cable bolt with mixing assemblyJENNMAR CORP·Filed 1998·Granted Jul 6, 1999·57 cites·18 claims
- 1081US6322290B1Cable bolt headJENNMAR CORP·Filed 2000·Granted Nov 27, 2001·27 cites·15 claims
- 1179US5542788AMethod and apparatus for monitoring mine roof support systemsJENNMAR CORP·Filed 1995·Granted Aug 6, 1996·49 cites·4 claims
- 1278US6527482B1Grit surface cable productsJENNMAR CORP·Filed 2000·Granted Mar 4, 2003·29 cites·16 claims
- 1378US5244314AExpansion assemblyJENNMAR CORP·Filed 1991·Granted Sep 14, 1993·48 cites·32 claims
- 1477US4934873AMine roof support utilizing roof anchors having eye-bolt headsJENNMAR CORP·Filed 1988·Granted Jun 19, 1990·39 cites·11 claims
- 1576US7073982B2Point anchor coated mine roof boltJENNMAR CORP·Filed 2005·Granted Jul 11, 2006·12 cites·16 claims
- 1676US4160614AExpansion shell assembly and method for combining resin bonding and mechanical anchoring of a bolt in a rock formationJENNMAR CORP·Filed 1978·Granted Jul 10, 1979·21 cites·13 claims
- 1774US4679966ARoof bolt apparatus with expansion shell and couplingJENNMAR CORP·Filed 1986·Granted Jul 14, 1987·40 cites·11 claims
- 1873US5954455ACombination bolt systemJENNMAR CORP·Filed 1997·Granted Sep 21, 1999·36 cites·28 claims
- 1972US7566189B2Mine roof bolt with resin control surfaceJENNMAR CORP·Filed 2007·Granted Jul 28, 2009·8 cites·20 claims
- 2072US5314268ANon-metallic reinforcing rod and method of use in supporting a rock formationJENNMAR CORP·Filed 1993·Granted May 24, 1994·33 cites·14 claims
- 2172US4861198AExpansion assembly for mine roof boltsJENNMAR CORP·Filed 1988·Granted Aug 29, 1989·34 cites·10 claims
- 2271US7261494B2Truss shoeJENNMAR CORP·Filed 2005·Granted Aug 28, 2007·10 cites·23 claims
- 2371US6270290B1Tensionable cable boltJENNMAR CORP·Filed 1999·Granted Aug 7, 2001·40 cites·20 claims
- 2471US5078547AExpansion assembly for mine roof boltsJENNMAR CORP·Filed 1990·Granted Jan 7, 1992·38 cites·19 claims
- 2571US4678374ARoof bolt with expansion shell and threaded nutJENNMAR CORP·Filed 1986·Granted Jul 7, 1987·33 cites·10 claims
- 2670US6612783B2Cable bolt with mixing delay deviceJENNMAR CORP·Filed 2002·Granted Sep 2, 2003·19 cites·20 claims
- 2769US6619888B2Flange nut for mine roof boltJENNMAR CORP·Filed 2001·Granted Sep 16, 2003·19 cites·14 claims
- 2869US5785463ACombination cable bolt systemJENNMAR CORP·Filed 1996·Granted Jul 28, 1998·32 cites·17 claims
- 2967US6599059B2Three-prong shellJENNMAR CORP·Filed 2001·Granted Jul 29, 2003·23 cites·15 claims
- 3067US5556234AMine roof bolt assemblyJENNMAR CORP·Filed 1995·Granted Sep 17, 1996·35 cites·17 claims
- 3166US6283451B1Hydraulic tensioner for mine roof support cablesJENNMAR CORP·Filed 1999·Granted Sep 4, 2001·23 cites·7 claims
- 3265US6056482ACable bolt headJENNMAR CORP·Filed 1996·Granted May 2, 2000·25 cites·5 claims
- 3365US4784531ABendable roof bolt without notchJENNMAR CORP·Filed 1987·Granted Nov 15, 1988·20 cites·9 claims
- 3464US7445408B2Yieldable prop having a restraint arrangementJENNMAR CORP·Filed 2006·Granted Nov 4, 2008·2 cites·10 claims
- 3564US5064312ADelay stopper for a mine roof anchor and method of manufacture thereofJENNMAR CORP·Filed 1990·Granted Nov 12, 1991·32 cites·3 claims
- 3663US5082399AMine roof anchor having adjustable resin retaining washer and expansion shell assembly with friction reducing meansJENNMAR CORP·Filed 1990·Granted Jan 21, 1992·32 cites·12 claims
- 3762US7134810B2Yieldable prop having a yield sectionJENNMAR CORP·Filed 2004·Granted Nov 14, 2006·9 cites·9 claims
- 3862US4865489AMine roof anchor having adjustable resin retaining washerJENNMAR CORP·Filed 1988·Granted Sep 12, 1989·26 cites·20 claims
- 3960US7390147B2Yieldable prop having a yield sectionJENNMAR CORP·Filed 2006·Granted Jun 24, 2008·1 cites·9 claims
- 4060US5232311ARoof control systemJENNMAR CORP·Filed 1991·Granted Aug 3, 1993·22 cites·11 claims
- 4160US4601616ARoof support system for a mine and the method and tooling for providing the sameJENNMAR CORP·Filed 1985·Granted Jul 22, 1986·30 cites·14 claims
- 4259US7360971B2Yieldable propJENNMAR CORP·Filed 2005·Granted Apr 22, 2008·1 cites·8 claims
- 4359US5292209ABearing plateJENNMAR CORP·Filed 1993·Granted Mar 8, 1994·22 cites·20 claims
- 4458US5769570ACable tensioning dome plateJENNMAR CORP·Filed 1996·Granted Jun 23, 1998·26 cites·12 claims
- 4558US5009549AExpansion assembly for mine roof boltsJENNMAR CORP·Filed 1989·Granted Apr 23, 1991·21 cites·10 claims
- 4657US7284933B2Square embossed roof and rib plateJENNMAR CORP·Filed 2003·Granted Oct 23, 2007·9 cites·21 claims
- 4757USRE35902EBearing plateJENNMAR CORP·Filed 1996·Granted Sep 22, 1998·21 cites·21 claims
- 4856US7334968B2Yieldable propJENNMAR CORP·Filed 2003·Granted Feb 26, 2008·7 cites·20 claims
- 4956US5385433ABearing plateJENNMAR CORP·Filed 1993·Granted Jan 31, 1995·25 cites·35 claims
- 5055US6074134ATensionable cable boltJENNMAR CORP·Filed 1998·Granted Jun 13, 2000·20 cites·25 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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