Inventor · disambiguated record
Frank Calandra, Jr.
Also filed as: CALANDRA FRANK N · CALANDRA JR FRANK
36 granted patents·1 pending application·1,068 citations·filing 1980–2004
98Inventor score
Top patents by PatentIndex Score
37 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
- 0587US5511909ACable bolt and method of use in supporting a rock formationJENNMAR CORP·Filed 1994·Granted Apr 30, 1996·68 cites·23 claims
- 0687US4861197ARoof bolt systemJENNMAR CORP·Filed 1987·Granted Aug 29, 1989·61 cites·13 claims
- 0785US5919006ATensionable cable bolt with mixing assemblyJENNMAR CORP·Filed 1998·Granted Jul 6, 1999·57 cites·18 claims
- 0881US6322290B1Cable bolt headJENNMAR CORP·Filed 2000·Granted Nov 27, 2001·27 cites·15 claims
- 0978US5244314AExpansion assemblyJENNMAR CORP·Filed 1991·Granted Sep 14, 1993·48 cites·32 claims
- 1077US4934873AMine roof support utilizing roof anchors having eye-bolt headsJENNMAR CORP·Filed 1988·Granted Jun 19, 1990·39 cites·11 claims
- 1176US5829922ACable bolt headJENMAR CORP·Filed 1996·Granted Nov 3, 1998·41 cites·25 claims
- 1273US5954455ACombination bolt systemJENNMAR CORP·Filed 1997·Granted Sep 21, 1999·36 cites·28 claims
- 1372US5314268ANon-metallic reinforcing rod and method of use in supporting a rock formationJENNMAR CORP·Filed 1993·Granted May 24, 1994·33 cites·14 claims
- 1471US5078547AExpansion assembly for mine roof boltsJENNMAR CORP·Filed 1990·Granted Jan 7, 1992·38 cites·19 claims
- 1571US4678374ARoof bolt with expansion shell and threaded nutJENNMAR CORP·Filed 1986·Granted Jul 7, 1987·33 cites·10 claims
- 1669US6619888B2Flange nut for mine roof boltJENNMAR CORP·Filed 2001·Granted Sep 16, 2003·19 cites·14 claims
- 1769US5785463ACombination cable bolt systemJENNMAR CORP·Filed 1996·Granted Jul 28, 1998·32 cites·17 claims
- 1867US6599059B2Three-prong shellJENNMAR CORP·Filed 2001·Granted Jul 29, 2003·23 cites·15 claims
- 1965US6056482ACable bolt headJENNMAR CORP·Filed 1996·Granted May 2, 2000·25 cites·5 claims
- 2065US4784531ABendable roof bolt without notchJENNMAR CORP·Filed 1987·Granted Nov 15, 1988·20 cites·9 claims
- 2164US5064312ADelay stopper for a mine roof anchor and method of manufacture thereofJENNMAR CORP·Filed 1990·Granted Nov 12, 1991·32 cites·3 claims
- 2259US5292209ABearing plateJENNMAR CORP·Filed 1993·Granted Mar 8, 1994·22 cites·20 claims
- 2357US7284933B2Square embossed roof and rib plateJENNMAR CORP·Filed 2003·Granted Oct 23, 2007·9 cites·21 claims
- 2457USRE35902EBearing plateJENNMAR CORP·Filed 1996·Granted Sep 22, 1998·21 cites·21 claims
- 2556US5385433ABearing plateJENNMAR CORP·Filed 1993·Granted Jan 31, 1995·25 cites·35 claims
- 2653US5762451AMulti-piece, split bail expansion anchorJENNMAR CORP·Filed 1997·Granted Jun 9, 1998·22 cites·20 claims
- 2753US5445477ABearing plate with a continuous elliptical embossmentJENNMAR CORP·Filed 1993·Granted Aug 29, 1995·20 cites·9 claims
- 2852US6146056AChannel and bearing plate assemblyJENNMAR CORP·Filed 1999·Granted Nov 14, 2000·20 cites·23 claims
- 2952US4969778AExpansion assembly for mine roof bolts utilized in small diameter bore holesJENNMAR CORP·Filed 1989·Granted Nov 13, 1990·19 cites·14 claims
- 3052US4904123AExpansion assembly for mine roof bolts utilized in small diameter bore holesJENNMAR CORP·Filed 1989·Granted Feb 27, 1990·19 cites·14 claims
- 3151US2005017000A1Returnable recyclable container having reinforced forklift entriesINTER PACK CORP·Filed 2004·Application pending·0 cites
- 3250US5425601ALongwall mining roof control systemJENNMAR CORP·Filed 1993·Granted Jun 20, 1995·15 cites·20 claims
- 3349US5302056AMethod and apparatus for supporting a mine roofJENNMAR CORP·Filed 1992·Granted Apr 12, 1994·16 cites·19 claims
- 3444US5437830AProcess of making a rod for use in reinforcing an underground rock formationJENMAR CORP·Filed 1994·Granted Aug 1, 1995·12 cites·3 claims
- 3540US5184923AExpansion shell assemblyJENNMAR CORP·Filed 1991·Granted Feb 9, 1993·12 cites·20 claims
- 3629US5450663AMethod for fabricating a truss member for a mine roof supportJENNMAR CORP·Filed 1993·Granted Sep 19, 1995·2 cites·9 claims
- 3726US5851481ARebar with vanadium alloyJENNMAR CORP·Filed 1997·Granted Dec 22, 1998·4 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →