AMVEST CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
E21C MINING OR QUARRYING121

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6283277 Self-propelled, mobile articulated tramming haulage conveyor system for mining operationsJul 15, 99Sep 04, 01[B65G]
5879057 Horizontal remote mining system, and methodNov 12, 96Mar 09, 99[E21C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6755480 Drum-type dual channel water-jet assisted cutting headExpiredFeb 27, 02Jun 29, 04[E21C]
6612655 Mining system and method featuring a bread loaf shaped boreholeExpiredFeb 22, 01Sep 02, 03[E21C]
6409276 Water-jet assisted drum-type mining systemExpiredMar 31, 00Jun 25, 02[E21C]
6364418 Cutting heads for horizontal remote mining systemExpiredNov 13, 98Apr 02, 02[E21C]
5246274 Remote mining haulage system with self-advancing mobile tailpiece and method of operating sameExpiredJun 04, 92Sep 21, 93[B65G, E21C]
5149175 Thin seam mining and related sorting methodExpiredApr 15, 91Sep 22, 92[B07C, F21C]

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