Class F25B : REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
Subclass 1/047: Compression machines, plant or systems with non-reversible cycle (F25B 3/00, F25B 5/00, F25B 6/00, F25B 7/00, F25B 9/00 take precedence) with compressor of rotary type (F25B 1/1 takes precedence) of screw type
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12209587 | Element, device and method for compressing gas to be compressed having a low temperature | Mar 24, 22 | Jan 28, 25 | Atlas Copco Airpower naamloze vennootschap |
| 12188472 | Rotor assembly, compressor and air conditioner | Oct 19, 21 | Jan 07, 25 | Gree Electric Appliances, Inc. of Zhuhai |
| 12163522 | Compressor containing oil separator with multiple internal muffler spaces | Sep 27, 23 | Dec 10, 24 | Daikin Industries Ltd. |
| 12146494 | Multi-stage compressor having interstage lubricant injection via an injection rod | Sep 05, 23 | Nov 19, 24 | Ingersoll-Rand Industrial U.S., Inc. |
| 12135032 | Screw compressor having working chamber closing member to regulate suction working medium flow to a working chamber | Mar 28, 22 | Nov 05, 24 | Hitachi Industrial Equipment Systems Co., Ltd. |
| 12117222 | Lubricant management for an HVACR system | May 28, 21 | Oct 15, 24 | TRANE INTERNATIONAL INC. |
| 12078172 | Multi-stage screw compressor | Mar 02, 22 | Sep 03, 24 | Hitachi Industrial Equipment Systems Co., Ltd. |
| 12050032 | Muffler with metallic meshed rings | Aug 18, 23 | Jul 30, 24 | Carrier Corporation |
| 12031760 | Freezing device | Jun 17, 19 | Jul 09, 24 | Mitsubishi Electric Corporation |
| 11994321 | High performance compressors and vapor compression systems | Jan 03, 20 | May 28, 24 | ASPEN COMPRESSOR LLC |
| 11959483 | Variable economizer injection position | Nov 16, 20 | Apr 16, 24 | TRANE INTERNATIONAL INC. |
| 11933301 | Variable capacity screw compressor and method | Oct 31, 22 | Mar 19, 24 | TRANE INTERNATIONAL INC. |
| 11920593 | Compressor stop valve and associated system | Mar 09, 21 | Mar 05, 24 | Ingersoll-Rand Industrial U.S., Inc. |
| 11906212 | Rotary heat exchanger | Jul 25, 22 | Feb 20, 24 | Nativus, Inc. |
| 11898561 | Direct drive refrigerant screw compressor with refrigerant lubricated rotors | May 19, 20 | Feb 13, 24 | Carrier Corporation |
| 11867180 | Seal assembly for high pressure single screw compressor | Oct 28, 19 | Jan 09, 24 | Copeland Industrial LP |
| 11852145 | Rotary compressors with variable speed and volume control | Dec 27, 19 | Dec 26, 23 | TRANE INTERNATIONAL INC. |
| 11815300 | Chiller system and a method for generating coordination maps for energy efficient chilled water and condenser water temperature resets in chiller plant system | Jul 08, 19 | Nov 14, 23 | Carrier Corporation |
| 11808490 | Muffler with metallic meshed rings | Oct 09, 18 | Nov 07, 23 | Carrier Corporation |
| 11781547 | Multi-stage compressor having interstage lubricant injection via an injection rod | Dec 30, 21 | Oct 10, 23 | Ingersoll-Rand Industrial U.S., Inc. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0020,367 | ROTARY HEAT EXCHANGER | Feb 16, 24 | Jan 16, 25 | Not available |
| 2022/0275,974 | ZERO-LOAD OUTPUT NON-STOP CONTROL METHOD AND APPARATUS, AND UNIT | Dec 24, 19 | Sep 01, 22 | GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI |
| 2021/0222,916 | REFRIGERATION CYCLE APPARATUS | May 15, 19 | Jul 22, 21 | DAIKIN INDUSTRIES, LTD. |
| 2020/0096,235 | SCREW COMPRESSOR FOR HVAC | Sep 21, 18 | Mar 26, 20 | Not available |
| 2018/0320,945 | DUAL-COMPRESSOR REFRIGERATION UNIT | Oct 25, 16 | Nov 08, 18 | Not available |
| 2012/0017,634 | Variable Capacity Screw Compressor and Method | Jul 20, 10 | Jan 26, 12 | TRANE INTERNATIONAL INC. |
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