Class E21F : SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
Subclass 1/14: Ventilation of mines or tunnels; Distribution of ventilating currents (ventilating rooms or spaces in general F24F) Air partitions; Air locks (dams E21F 17/103; air locks for foundations E02D)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11674392 | Split air cabin ventilation system for construction of tunnel inclined shaft and ventilation method using same | Mar 25, 21 | Jun 13, 23 | CHINA RAILWAY BEIJING ENGINEERING GROUP CO., LTD; The No. 1 Engineering Co., Ltd of China Railway Beijing Engineering Group; CHANG'AN UNIVERSITY; |
| 11293285 | Sealing system | Oct 18, 17 | Apr 05, 22 | The Secretary of State for Defence |
| 10900357 | Blowing curtain face ventilation system for extended cut mining using passive regulator | May 01, 14 | Jan 26, 21 | The University of Kentucky Research Foundation |
| 10801323 | Mine stopping and components thereof | Mar 29, 19 | Oct 13, 20 | Jack Kennedy Metal Products & Buildings, Inc. |
| 10577932 | Barricade wall | May 30, 18 | Mar 03, 20 | DKR MANUFACTURING INC. |
| 10443381 | Adjustable mine ventilation system and method | Dec 28, 15 | Oct 15, 19 | GMS Mine Repair and Maintenance, Inc. |
| 10287884 | Mine stopping panel and method of sealing a mine stopping | Sep 13, 17 | May 14, 19 | Jack Kennedy Metal Products & Buildings, Inc. |
| 10151203 | Mine stopping panel with end caps and louver connections | Jun 08, 16 | Dec 11, 18 | Jack Kennedy Metal Products & Buildings, Inc. |
| 10001009 | Pumpable mine ventilation structure | Feb 20, 15 | Jun 19, 18 | FCI Holdings Delaware, Inc.; ABC Industries, Inc.; |
| 9797250 | Safe haven wall | Nov 11, 15 | Oct 24, 17 | Not available |
| 9759065 | Mine ventilation system and method | May 07, 14 | Sep 12, 17 | GMS MINE REPAIR AND MAINTENANCE, INC. |
| 9476301 | Mine ventilation door with wings and slidable or pocket personnel door | Feb 22, 13 | Oct 25, 16 | AMERICAN MINE DOOR CO. |
| 9447684 | Mine stopping panel with end caps and louver connections | Aug 19, 13 | Sep 20, 16 | JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC. |
| 9447685 | Mine ventilation structure and a deck panel for such a structure | Apr 14, 15 | Sep 20, 16 | JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC. |
| 9022689 | Pumpable mine ventilation structure | Feb 07, 14 | May 05, 15 | ABC INDUSTRIES, INC., HEINTZMANN CORPORATION, |
| 8966846 | Steel anchored reinforced mine seal | Jun 11, 13 | Mar 03, 15 | STRATA MINE SERVICES |
| 8807661 | Method of controlling ventilation in a mine entry with polymeric gel | Jan 17, 12 | Aug 19, 14 | Micon |
| 8801510 | Inflatable ventilation life curtain | Mar 15, 07 | Aug 12, 14 | HEINTZMANN CORPORATION |
| 8485873 | Steel anchored reinforced mine seal | Jul 03, 07 | Jul 16, 13 | STRATA MINE SERVICES |
| 8100479 | Miner acoustic communication and location system | Aug 14, 07 | Jan 24, 12 | BATTELLE MEMORIAL INSTITUTE |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2022/0065,109 | EXPANDABLE MINE STOPPING PANEL | Aug 25, 21 | Mar 03, 22 | Not available |
| 2017/0191,365 | Overcast System for Mine Ventilation | Dec 30, 16 | Jul 06, 17 | FCI HOLDINGS DELAWARE, INC. |
| 2014/0329,453 | BLOWING CURTAIN FACE VENTILATION SYSTEM FOR EXTENDED CUT MINING USING PASSIVE REGULATOR | May 01, 14 | Nov 06, 14 | UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION |
| Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More |
|---|
