ECKEL MANUFACTURING CO., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING539
 
  
 
E21B EARTH OR ROCK DRILLING 492

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9835000 Door latch for power tongJul 28, 15Dec 05, 17[E21B]
7237456 Power tong with reduced die markingsApr 29, 04Jul 03, 07[B25B]
6966385 Tong positioning system and methodMay 02, 03Nov 22, 05[E21B]
6938520 Backup tong with swing armsApr 29, 04Sep 06, 05[0000]
6279426 Power tong with improved door latchApr 28, 00Aug 28, 01[B25B]
6058811 Power tong with improved door mechanismJan 13, 99May 09, 00[B25B]
5778742 Hydraulic backup tongJul 03, 97Jul 14, 98[B25B]
5746276 Method of rotating a tubular memberJul 18, 96May 05, 98[E21B]
5566769 Tubular rotation tool for snubbing operationsOct 31, 94Oct 22, 96[E21B]
RE31699 Back-up power tongs and methodMay 12, 83Oct 09, 84[B25B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D336836 Power tongExpiredApr 30, 90Jun 29, 93[]
4593584 Power tongs with improved hydraulic driveExpiredJun 25, 84Jun 10, 86[B25B]
4590823 Dual-string tubing tong and methodExpiredOct 09, 84May 27, 86[B25B]
4574664 Powered back-up tongsExpiredJul 23, 84Mar 11, 86[B25B]
4487092 Power tong methods and apparatusExpiredDec 10, 82Dec 11, 84[B25B]
4404876 Power tongsExpiredMar 28, 80Sep 20, 83[B25B]
4402239 Back-up power tongs and methodExpiredMar 13, 81Sep 06, 83[B25B]
4290304 Back-up power tongs and methodExpiredApr 30, 79Sep 22, 81[B25B]

Top Inventors for This Owner

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