David Clark Company Incorporated

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
1401 EQUIPMENT FOR THE RECORDING OR REPRODUCTION OF SOUNDS OR PICTURES251
 
  
 
A41D OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES 134
 
  
 
A42B HATS; HEAD COVERINGS 123
 
  
 
G10K SOUND-PRODUCING DEVICES 134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D713375 Active headsetMar 07, 13Sep 16, 14[1401]
D713376 Passive headsetMar 07, 13Sep 16, 14[1401]
7076808 Tactical flyers ensembleFeb 02, 04Jul 18, 06[A41D]
5911314 Headset ear sealMar 31, 98Jun 15, 99[G10K, A42B]
D398309 HeadsetApr 18, 96Sep 15, 98[1401]
D391575 Headset earcupApr 21, 95Mar 03, 98[1401]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0295,853 COMMUNICATION SYSTEM AND METHOD HAVING LOW-SIGNAL-LEVEL WARNING SYSTEM AND METHODAbandonedMay 03, 12Nov 07, 13[H04B]
2012/0224,709 VOICE ACTIVATION SYSTEM AND METHOD AND COMMUNICATION SYSTEM AND METHOD USING THE SAMEAbandonedMar 02, 12Sep 06, 12[G08B, H04R]
2009/0141,906 Communication Headset Processing Multiple Audio InputsAbandonedNov 30, 07Jun 04, 09[G10K]
2009/0136,052 Active Noise Cancellation Using a Predictive ApproachAbandonedNov 27, 07May 28, 09[A61F]
2007/0041,606 Apparatus and method for noise cancellation in communication headset using dual-coil speakerAbandonedAug 22, 05Feb 22, 07[H04R]
2005/0089,185 Headset ear seal employing phase change materialAbandonedOct 28, 03Apr 28, 05[H04R]
6729643 Driver neck support and head restraintExpiredMar 01, 02May 04, 04[B60R, A42B]
6684976 Headset ear sealExpiredApr 12, 02Feb 03, 04[G10K, H04R]
5821468 Laminated nap comfort cover for ear sealExpiredMay 20, 96Oct 13, 98[H04R, A42B]
5590213 Headset with adjustable headpadExpiredFeb 15, 95Dec 31, 96[H04R]
D351390 Cushioned headbandExpiredMar 23, 93Oct 11, 94[]
5335370 Partial pressure cuff seal for utilization in a full pressure suitExpiredMar 23, 93Aug 09, 94[A62B]
5322245 Integrated pilot protective and restraint systemExpiredNov 30, 92Jun 21, 94[B64D]
5208514 Integrated pilot protective and restraint systemExpiredApr 27, 92May 04, 93[F41H]
5185807 Headset with multi-position stirrup assembliesExpiredMay 08, 91Feb 09, 93[H04R]
5138722 Headset ear sealExpiredJul 02, 91Aug 18, 92[A42B]
D324986 KnobExpiredJan 27, 89Mar 31, 92[]
D322440 MicrophoneExpiredFeb 21, 89Dec 17, 91[]
D322071 HeadphoneExpiredJan 27, 89Dec 03, 91[]
D316414 Cushion for attachment to the arcuate headband connecting the earpiece members of a communications headsetExpiredJan 27, 89Apr 23, 91[]

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