E21D

Follow

Stats

Description

SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F)

Subclasses

Not Available
Subclass Title
1/00 Sinking shafts
1/02 Sinking shafts by hand
1/03 Sinking shafts mechanically (E21D 1/08 takes precedence)
1/04 Sinking shafts mechanically (E21D 1/08 takes precedence) with grabs
1/06 Sinking shafts mechanically (E21D 1/08 takes precedence) with shaft-boring cutters (drilling machines E21B)

more results

Recent Patents

Not Available
Patent #TitleFiling DateIssue DatePatent Owner
9,010,870 Mining systems May 01, 14 Apr 21, 15 , SENECA INDUSTRIES INC.
9,010,872 Tunnel boring machine with cutterhead support assembly supporting a variable number of drive systems Jun 24, 13 Apr 21, 15 , THE ROBBINS COMPANY
9,010,061 Lattice girder Sep 03, 13 Apr 21, 15 , BOCHUMER EISENHÜTTE HEINTZMANN GMBH & CO. KG
9,004,609 Method and device for working rock Oct 29, 09 Apr 14, 15 ATLAS COPCO CRAELIUS AB, ATLAS COPCO CRAELIUS AB
9,004,820 Grouting method for anchoring with polymer Apr 19, 13 Apr 14, 15 SAFEKEY ENGINEERING TECHNOLOGY (ZHENGZHOU), LTD., SAFEKEY ENGINEERING TECHNOLOGY(ZHENGZHOU), LTD.
8,998,343 Method for determining the position or location of plant components in mining extracting plants and extracting plant Feb 18, 11 Apr 07, 15 CATERPILLAR GLOBAL MINING EUROPE GMBH, CATERPILLAR GLOBAL MINING EUROPE GMBH
8,998,541 Rock bolt Feb 09, 12 Apr 07, 15 SUOMEN METALLITYO OY, SUOMEN METALLITYÖ OY

more results

Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2015/0104,261 KNOTTED MESH AS SUPPORTING MATERIAL IN MINES Feb 08, 13 Apr 16, 15 NV BEKAERT SA,
2015/0097,099 Telescopic Pumpable Props Mar 07, 14 Apr 09, 15 COUGAR CAN COMPANY PTY LTD.,
2015/0086,272 SELF-MOVING TUNNEL SUPPORT CANOPY Jun 26, 12 Mar 26, 15 ,
2015/0086,280 ROOF SUPPORT SHEET HANDLING FOR UNDERGROUND MINES Dec 03, 14 Mar 26, 15 JOY MM DELAWARE, INC.,

more results

Patents Issued To Date - By Filing Year

Average Time to Issuance

We are sorry but your current selection exceeds the maximum number of follows () for this membership level. Upgrade to our Level for up to follows!

UPGRADE MEMBERSHIP CANCEL