Assignee
SPECIAL DEVICES INC
US44 patents
Top patents by PatentIndex Score
US7107908B2Sep 19, 2006
Firing-readiness diagnostic of a pyrotechnic device such as an electronic detonator
SPECIAL DEVICES INC76 citations95
US5013318AMay 7, 1991
Medical instrument for measuring depth of fastener hold in bone
SPECIAL DEVICES INC337 citations93
US7681500B2Mar 23, 2010
Method for logging a plurality of slave devices
SPECIAL DEVICES INC17 citations92
US7617775B2Nov 17, 2009
Multiple slave logging device
SPECIAL DEVICES INC28 citations92
US7577756B2Aug 18, 2009
Dynamically-and continuously-variable rate, asynchronous data transfer
SPECIAL DEVICES INC19 citations92
US7464647B2Dec 16, 2008
Dynamic baselining in current modulation-based communication
SPECIAL DEVICES INC14 citations92
US6988449B2Jan 24, 2006
Dynamic baselining in current modulation-based communication
SPECIAL DEVICES INC29 citations92
US6612241B2Sep 2, 2003
Pyrotechnic initiator with center pin having a circumferential notch retention feature
SPECIAL DEVICES INC21 citations92
US6508175B1Jan 21, 2003
Pyrotechnic initiator for use in high pressure environments
SPECIAL DEVICES INC19 citations92
US7123124B2Oct 17, 2006
Pyrotechnic circuit breaker
SPECIAL DEVICES INC64 citations91
US7082877B2Aug 1, 2006
Current modulation-based communication for slave device
SPECIAL DEVICES INC17 citations91
US7017494B2Mar 28, 2006
Method of identifying an unknown or unmarked slave device such as in an electronic blasting system
SPECIAL DEVICES INC16 citations91
US6966262B2Nov 22, 2005
Current modulation-based communication from slave device
SPECIAL DEVICES INC27 citations91
US6789483B1Sep 14, 2004
Detonator utilizing selection of logger mode or blaster mode based on sensed voltages
SPECIAL DEVICES INC47 citations91
US7239225B2Jul 3, 2007
Pyrotechnic circuit breaker
SPECIAL DEVICES INC47 citations90
US5099762AMar 31, 1992
Electrostatic discharge immune electric initiator
SPECIAL DEVICES INC71 citations90
US6763764B2Jul 20, 2004
Multi-unit pyrotechnic initiation system
SPECIAL DEVICES INC29 citations89
US6644198B1Nov 11, 2003
Integral pyrotechnic initiator with molded connector
SPECIAL DEVICES INC32 citations89
US4261263AApr 14, 1981
RF-insensitive squib
SPECIAL DEVICES INC81 citations89
US6848365B2Feb 1, 2005
Initiator with an internal sleeve retaining a pyrotechnic charge and methods of making same
SPECIAL DEVICES INC16 citations88
US7054131B1May 30, 2006
Pre-fire countdown in an electronic detonator and electronic blasting system
SPECIAL DEVICES INC20 citations85
US6915744B2Jul 12, 2005
Pyrotechnic initiator with on-board control circuitry
SPECIAL DEVICES INC22 citations85
US7870825B2Jan 18, 2011
Enhanced method, device, and system for identifying an unknown or unmarked slave device such as in an electronic blasting system
SPECIAL DEVICES INC16 citations84
US7347145B2Mar 25, 2008
Dynamic baselining in current modulation-based communication
SPECIAL DEVICES INC11 citations83
US7086334B2Aug 8, 2006
Staggered charging of slave devices such as in an electronic blasting system
SPECIAL DEVICES INC12 citations83
US6892643B2May 17, 2005
Constant-current, rail-voltage regulated charging electronic detonator
SPECIAL DEVICES INC14 citations83
US7533613B2May 19, 2009
Slave device, such as in an electronic blasting system, capable of being identified if unknown or unmarked
SPECIAL DEVICES INC12 citations82
US6578487B2Jun 17, 2003
Pyrotechnic initiator with a narrowed sleeve retaining a pyrotechnic charge and methods of making same
SPECIAL DEVICES INC16 citations81
US7004071B2Feb 28, 2006
Initiator with an internal sleeve retaining a pyrotechnic charge and methods of making same
SPECIAL DEVICES INC13 citations80
US5279226AJan 18, 1994
Safe-arm initiator
SPECIAL DEVICES INC20 citations80
US7124688B2Oct 24, 2006
Overmolded body for pyrotechnic initiator and method of molding same
SPECIAL DEVICES INC18 citations79
US7464648B2Dec 16, 2008
Hybrid electronic and electromechanical arm-fire device
SPECIAL DEVICES INC10 citations77
US6779456B2Aug 24, 2004
Initiator with a bridgewire configured in an enhanced heat-sinking relationship
SPECIAL DEVICES INC11 citations73
US7322293B2Jan 29, 2008
Device and system for identifying an unknow or unmarked slave device such as in an electronic blasting system
SPECIAL DEVICES INC8 citations72
US6941867B2Sep 13, 2005
Initiator with a slip plane between an ignition charge and an output charge
SPECIAL DEVICES INC8 citations71
US6907827B2Jun 21, 2005
Pyrotechnic initiator having output can with encapsulation material retention feature
SPECIAL DEVICES INC6 citations71
US4592281AJun 3, 1986
Arming and firing device
SPECIAL DEVICES INC22 citations69
US5993578ANov 30, 1999
Method of drying pyrotechnic compositions
SPECIAL DEVICES INC8 citations67
US7114427B1Oct 3, 2006
Quick-loosening mechanical linking device
SPECIAL DEVICES INC4 citations61
US6964715B2Nov 15, 2005
High impetus, high burn rate gas generant propellant and seatbelt pretensioner incorporating same
SPECIAL DEVICES INC2 citations56
US10816310B2Oct 27, 2020
Igniter with a locked consolidated powder charge
SPECIAL DEVICES INC1 citations55
US6698356B2Mar 2, 2004
Axial spin method of distributing pyrotechnic charge in an initiator
SPECIAL DEVICES INC5 citations54
US7047884B2May 23, 2006
Pyrotechnic initiator having output can with encapsulation material retention feature
SPECIAL DEVICES INC1 citations50
US6126764AOct 3, 2000
Powdered metal pyrotechnic fuel
SPECIAL DEVICES INC1 citations46