Class E21F : SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
Subclass 1/00: Ventilation of mines or tunnels; Distribution of ventilating currents (ventilating rooms or spaces in general F24F)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12258865 | Coal and gas outburst monitoring device | Aug 16, 24 | Mar 25, 25 | HENAN POLYTECHNIC UNIVERSITY |
| 12221889 | Mine cooling and dehumidifying system | Jun 28, 24 | Feb 11, 25 | Shandong University of Science and Technology |
| 12168931 | Mining method without coal pillars with roof-cutting and roadway retaining | Apr 30, 21 | Dec 17, 24 | CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING |
| 12168932 | Three-dimensional ventilation method and system for mining by 110 construction method in coal and gas outburst mines | Apr 30, 21 | Dec 17, 24 | CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING |
| 12060795 | Roadway conduit systems and methods | Dec 27, 21 | Aug 13, 24 | Electricwaze LLC |
| 12038203 | Train station, in particular a tunnel-type train station, and use of a filter unit in a train station | Jan 12, 21 | Jul 16, 24 | Filterwek Mann & Hummel GmbH |
| 12031888 | Methane watchdog system, a cost effective approach to longwall methane monitoring and control | May 05, 21 | Jul 09, 24 | West Virginia University |
| 11767757 | Roadway conduit systems and methods | Feb 08, 21 | Sep 26, 23 | Electricwaze LLC |
| 11746654 | Kind of no-pillar and gob-side entry retaining mining and construction method without the mining area division | Mar 24, 20 | Sep 05, 23 | Shandong University of Science and Technology |
| 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; |
| 11655712 | Optimised tunnel ventilation device | Feb 21, 18 | May 23, 23 | Mosen LTD |
| 11466568 | Optimized mine ventilation system | Oct 22, 19 | Oct 11, 22 | HOWDEN CANADA INC. |
| 11208889 | Roadway conduit systems and methods | Feb 14, 20 | Dec 28, 21 | Electricwaze LLC |
| 11136740 | Underwater traffic tunnel | Oct 26, 20 | Oct 05, 21 | Not available |
| 10913178 | Conduit segment casting mold and method of forming a conduit segment | Dec 03, 18 | Feb 09, 21 | Electricwaze LLC |
| 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 |
| 10758753 | Ducting system | Oct 27, 16 | Sep 01, 20 | Commonwealth Scientific and Industrial Research Organisation |
| 10760420 | Underground ventilation apparatus and method | Jan 22, 16 | Sep 01, 20 | Polyvent PTY LTD |
| 10598182 | Ventilation apparatus with counter-rotating impellers driven by long shaft | Nov 19, 15 | Mar 24, 20 | Taiyuan University of Technology |
| 10563507 | Roadway conduit systems and methods | Aug 09, 19 | Feb 18, 20 | Electricwaze LLC |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0101,870 | ROADWAY CONDUIT SYSTEMS AND METHODS | Aug 12, 24 | Mar 27, 25 | Not available |
| 2024/0360,759 | ROADWAY CONDUIT SYSTEMS AND METHODS | Jul 03, 24 | Oct 31, 24 | Not available |
| 2024/0310,006 | METHODS AND SYSTEMS FOR SUPERVISING SAFETY VENTILATION OF UNDERGROUND GAS PIPELINE CORRIDORS BASED ON INTERNET OF THINGS | May 21, 24 | Sep 19, 24 | CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD. |
| 2024/0200,453 | METHOD AND APPARATUS FOR FIRE VENTILATION AND SMOKE EVACUATION IN RUNNING TRAIN TUNNEL | Dec 19, 23 | Jun 20, 24 | Not available |
| 2024/0159,149 | ROADWAY CONDUIT SYSTEMS AND METHODS | Aug 29, 23 | May 16, 24 | Not available |
| 2024/0141,788 | SYSTEMS AND METHODS FOR MEASURING MINE TUNNEL ENVIRONMENTAL INFORMATION | Oct 28, 22 | May 02, 24 | Not available |
| 2020/0256,190 | ROADWAY CONDUIT SYSTEMS AND METHODS | Feb 14, 20 | Aug 13, 20 | Not available |
| 2020/0182,056 | OPTIMISED TUNNEL VENTILATION DEVICE | Feb 21, 18 | Jun 11, 20 | Not available |
| 2019/0249,552 | ROADWAY CONDUIT SYSTEMS AND METHODS | Dec 03, 18 | Aug 15, 19 | Not available |
| 2017/0362,937 | UNDERGROUND VENTILATION APPARATUS AND METHOD | Jan 22, 16 | Dec 21, 17 | POLYVENT PTY LTD |
| 2017/0341,094 | TUNNEL FAN AND METHOD | May 26, 17 | Nov 30, 17 | TWIN CITY FAN COMPANIES, LTD. |
| 2017/0321,553 | RAILROAD PLATFORM DOOR ARRANGEMENT | Apr 25, 17 | Nov 09, 17 | Not available |
| 2017/0183,967 | MODULAR CONTROLLING SYSTEM FOR VENTILATION EQUIPMENT AND METHODS OF USING THE SAME | May 11, 15 | Jun 29, 17 | Not available |
| 2017/0159,435 | System for Filtering the Fresh Air Flowing in a Tunnel and/or the Exhaust Gases Flowing out Therefrom | Jun 25, 15 | Jun 08, 17 | Not available |
| 2016/0305,244 | SYSTEM AND METHOD FOR EXTRACTION OF SMOKE FROM ROAD TUNNELS | Dec 05, 14 | Oct 20, 16 | Tunnel Air Systems AS |
| 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 |
|---|
