Assignee
ENSIGN BICKFORD CO
US·89 granted patents·3,003 citations·filing 1975–2000
Top patents by PatentIndex Score
89 records- 0193US6739265B1Explosive device with assembled segments and related methodsENSIGN BICKFORD CO·Filed 1999·Granted May 25, 2004·78 cites·114 claims
- 0293US5912428AElectronic circuitry for timing and delay circuitsENSIGN BICKFORD CO·Filed 1997·Granted Jun 15, 1999·71 cites·10 claims
- 0393US5435248AExtended range digital delay detonatorENSIGN BICKFORD CO·Filed 1992·Granted Jul 25, 1995·88 cites·18 claims
- 0493US5129514AFlexible cord winding and packaging configuration and method for making such packageENSIGN BICKFORD CO·Filed 1991·Granted Jul 14, 1992·61 cites·13 claims
- 0592US5703319AConnector block for blast initiation systemsENSIGN BICKFORD CO·Filed 1995·Granted Dec 30, 1997·100 cites·23 claims
- 0692US4757764ANonelectric blasting initiation signal control system, method and transmission device thereforENSIGN BICKFORD CO·Filed 1985·Granted Jul 19, 1988·73 cites·16 claims
- 0789US6199484B1Voltage-protected semiconductor bridge igniter elementsENSIGN BICKFORD CO·Filed 1999·Granted Mar 13, 2001·69 cites·21 claims
- 0889US5173569ADigital delay detonatorENSIGN BICKFORD CO·Filed 1991·Granted Dec 22, 1992·62 cites·16 claims
- 0988US6120627AExplosive with bioremediating capacityENSIGN BICKFORD CO·Filed 1996·Granted Sep 19, 2000·34 cites·61 claims
- 1088US5929368AHybrid electronic detonator delay circuit assemblyENSIGN BICKFORD CO·Filed 1996·Granted Jul 27, 1999·62 cites·25 claims
- 1188US5377592AImpulse signal delay unitENSIGN BICKFORD CO·Filed 1992·Granted Jan 3, 1995·70 cites·29 claims
- 1288US3981240ADetonating cap assembly and connecting bushingENSIGN BICKFORD CO·Filed 1975·Granted Sep 21, 1976·44 cites·14 claims
- 1387US6644200B1Method for bioremediating undetonated explosive deviceENSIGN BICKFORD CO·Filed 2000·Granted Nov 11, 2003·14 cites·96 claims
- 1487US6508176B1Accumulated detonating cord explosive charge and method of making and of use of the sameENSIGN BICKFORD CO·Filed 2000·Granted Jan 21, 2003·32 cites·13 claims
- 1587US6311621B1Shock-resistant electronic circuit assemblyENSIGN BICKFORD CO·Filed 1999·Granted Nov 6, 2001·52 cites·27 claims
- 1687US5780764ABooster explosive devices and combinations thereof with explosive accessory chargesENSIGN BICKFORD CO·Filed 1996·Granted Jul 14, 1998·64 cites·25 claims
- 1787US5714712AExplosive initiation systemENSIGN BICKFORD CO·Filed 1996·Granted Feb 3, 1998·78 cites·27 claims
- 1887US5499581AMolded article having integral displaceable member or members and method of useENSIGN BICKFORD CO·Filed 1994·Granted Mar 19, 1996·56 cites·27 claims
- 1987US5171935ALow-energy blasting initiation system method and surface connection thereofENSIGN BICKFORD CO·Filed 1992·Granted Dec 15, 1992·71 cites·3 claims
- 2086US5417162ADetonation coupling deviceENSIGN BICKFORD CO·Filed 1994·Granted May 23, 1995·63 cites·17 claims
- 2186US4742773ABlasting signal transmission tube delay unitENSIGN BICKFORD CO·Filed 1986·Granted May 10, 1988·42 cites·6 claims
- 2285US5889228ADetonator with loosely packed ignition charge and method of assemblyENSIGN BICKFORD CO·Filed 1997·Granted Mar 30, 1999·46 cites·26 claims
- 2385US3987732ANon-electric double delay borehole downline unit for blasting operationsENSIGN BICKFORD CO·Filed 1975·Granted Oct 26, 1976·43 cites·9 claims
- 2484US5327835ADetonation device including coupling meansENSIGN BICKFORD CO·Filed 1993·Granted Jul 12, 1994·59 cites·12 claims
- 2584US5031538ADelay train ignition bufferENSIGN BICKFORD CO·Filed 1990·Granted Jul 16, 1991·45 cites·10 claims
- 2683US6408759B1Initiator with loosely packed ignition charge and method of assemblyENSIGN BICKFORD CO·Filed 1998·Granted Jun 25, 2002·41 cites·39 claims
- 2783US6347566B1Method of making a signal transmission fuseENSIGN BICKFORD CO·Filed 2000·Granted Feb 19, 2002·24 cites·15 claims
- 2882US6660112B1Method for manufacturing explosive device having self-remediating capacityENSIGN BICKFORD CO·Filed 2000·Granted Dec 9, 2003·8 cites·91 claims
- 2980US6508177B1Explosives with embedded bodiesENSIGN BICKFORD CO·Filed 2000·Granted Jan 21, 2003·14 cites·17 claims
- 3080US6125762AFlat-form separation devicesENSIGN BICKFORD CO·Filed 1998·Granted Oct 3, 2000·48 cites·22 claims
- 3180US5831203AHigh impedance semiconductor bridge detonatorENSIGN BICKFORD CO·Filed 1997·Granted Nov 3, 1998·45 cites·17 claims
- 3280US5747722ADetonators having multiple-line input leadsENSIGN BICKFORD CO·Filed 1996·Granted May 5, 1998·37 cites·13 claims
- 3380US5597973ASignal transmission fuseENSIGN BICKFORD CO·Filed 1995·Granted Jan 28, 1997·41 cites·16 claims
- 3480US5365851AInitiator deviceENSIGN BICKFORD CO·Filed 1992·Granted Nov 22, 1994·53 cites·17 claims
- 3580US4771694ABlasting signal transmission tube connectorENSIGN BICKFORD CO·Filed 1986·Granted Sep 20, 1988·30 cites·20 claims
- 3680US4730560ACombination blasting signal transmission tube connector and delay assemblyENSIGN BICKFORD CO·Filed 1986·Granted Mar 15, 1988·30 cites·17 claims
- 3779US6694886B1Rigid reactive cord and methods of use and manufactureENSIGN BICKFORD CO·Filed 2000·Granted Feb 24, 2004·23 cites·29 claims
- 3877US5001981ASignal transmission tube for initiation of explosivesENSIGN BICKFORD CO·Filed 1990·Granted Mar 26, 1991·45 cites·11 claims
- 3976US6079332AShock-resistant electronic circuit assemblyENSIGN BICKFORD CO·Filed 1996·Granted Jun 27, 2000·39 cites·11 claims
- 4075US4838165AImpeded velocity signal transmission lineENSIGN BICKFORD CO·Filed 1987·Granted Jun 13, 1989·28 cites·6 claims
- 4174US5898123ASealing device and a method for assembly thereofENSIGN BICKFORD CO·Filed 1997·Granted Apr 27, 1999·38 cites·24 claims
- 4274US5827995AReactive products having tin and tin alloy liners and sheathsENSIGN BICKFORD CO·Filed 1997·Granted Oct 27, 1998·28 cites·21 claims
- 4374US5392684AExplosive thrust-producing couplingENSIGN BICKFORD CO·Filed 1993·Granted Feb 28, 1995·35 cites·10 claims
- 4473US5476044AElectronic safe/arm deviceENSIGN BICKFORD CO·Filed 1994·Granted Dec 19, 1995·32 cites·12 claims
- 4573US5012741AInitiator for a transmission tubeENSIGN BICKFORD CO·Filed 1990·Granted May 7, 1991·29 cites·4 claims
- 4672US5736669ASystems for bioremediating explosivesENSIGN BICKFORD CO·Filed 1996·Granted Apr 7, 1998·23 cites·69 claims
- 4772US5631440AUniversal isolation member and non-electric detonator cap including the sameENSIGN BICKFORD CO·Filed 1996·Granted May 20, 1997·28 cites·22 claims
- 4872US5398611ALow energy blasting initiation system, method and surface connection thereforENSIGN BICKFORD CO·Filed 1993·Granted Mar 21, 1995·36 cites·18 claims
- 4971US4187780ADetonating cord and blasting cap connector blockENSIGN BICKFORD CO·Filed 1978·Granted Feb 12, 1980·33 cites·9 claims
- 5070US5827994AFissile shock tube and method of making the sameENSIGN BICKFORD CO·Filed 1996·Granted Oct 27, 1998·24 cites·28 claims
Showing the top 50 of 89 patent records by PatentIndex Score.
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