| 2025/0116,210 | PUMPED HEAT ENERGY STORAGE SYSTEM WITH ELECTRIC HEATING INTEGRATION | Dec 20, 24 | Apr 10, 25 | Not available |
| 2025/0084,773 | DUAL-POWERTRAIN PUMPED HEAT ENERGY STORAGE WITH INVENTORY CONTROL AND PURGE | Nov 21, 24 | Mar 13, 25 | Not available |
| 2025/0069,766 | SYSTEM AND RELATED METHOD FOR CONVERTING FOSSIL-FUELED GENERATING PLANTS TO CLEAN ENERGY | Nov 14, 24 | Feb 27, 25 | HOLTEC INTERNATIONAL |
| 2025/0006,390 | Method, System, and Apparatus for the Thermal Storage of Nuclear Reactor Generated Energy | Jul 07, 24 | Jan 02, 25 | Not available |
| 2024/0159,167 | PUMPED HEAT ENERGY STORAGE SYSTEM WITH ELECTRIC HEATING INTEGRATION | Jan 26, 24 | May 16, 24 | Not available |
| 2024/0159,168 | DUAL-POWERTRAIN PUMPED HEAT ENERGY STORAGE WITH INVENTORY CONTROL AND PURGE | Dec 21, 23 | May 16, 24 | Not available |
| 2023/0052,951 | SYSTEM COMPRISING THERMAL ACCUMULATOR, METHOD FOR OPERATING SAME, AND METHOD FOR MODIFYING SAME | Dec 28, 20 | Feb 16, 23 | Siemens Energy Global GmbH & Co. KG |
| 2023/0012,284 | PUMPED HEAT ENERGY STORAGE SYSTEM WITH ELECTRIC HEATING INTEGRATION | Jul 25, 22 | Jan 12, 23 | Not available |
| 2022/0372,893 | MECHANICAL ENERGY GENERATION SYSTEM WITH ENERGY RECOVERY AND A METHOD THEREOF | Oct 15, 20 | Nov 24, 22 | MAXEFF TEKNOLOJI ANONIM SIRKETI |
| 2022/0049,630 | PUMPED HEAT ENERGY STORAGE SYSTEM WITH ELECTRIC HEATING INTEGRATION | Aug 12, 20 | Feb 17, 22 | Not available |
| 2019/0301,306 | POWER PLANT WITH HEAT RESERVOIR | Jun 26, 17 | Oct 03, 19 | Siemens Aktiengesellschaft |
| 2019/0212,070 | Hybrid Pumped Thermal Systems | Mar 15, 19 | Jul 11, 19 | Not available |
| 2019/0195,571 | Pumped Thermal Storage Cycles with Recuperation | Feb 28, 19 | Jun 27, 19 | Not available |
| 2019/0153,901 | Varying Compression Ratios in Energy Storage and Retrieval Systems | Feb 23, 17 | May 23, 19 | Not available |
| 2018/0347,406 | QUINTUPLE-EFFECT GENERATION MULTI-CYCLE HYBRID RENEWABLE ENERGY SYSTEM WITH INTEGRATED ENERGY PROVISIONING, STORAGE FACILITIES AND AMALGAMATED CONTROL SYSTEM | Aug 13, 18 | Dec 06, 18 | Not available |
| 2018/0142,577 | ENERGY STORAGE DEVICE AND METHOD FOR STORING ENERGY | Apr 19, 16 | May 24, 18 | Not available |
| 2017/0159,495 | Methods of Hot and Cold Side Charging in Thermal Energy Storage Systems | Feb 23, 17 | Jun 08, 17 | GOOGLE INC., GIGAWATT DAY STORAGE SYSTEMS, INC., |
| 2017/0159,496 | Varying Compression Ratios in Energy Storage and Retrieval Systems | Feb 23, 17 | Jun 08, 17 | GOOGLE INC., GIGAWATT DAY STORAGE SYSTEMS, INC., |
| 2017/0159,497 | Pumped Thermal Systems with Variable Stator Pressure Ratio Control | Feb 23, 17 | Jun 08, 17 | GOOGLE INC., GIGAWATT DAY STORAGE SYSTEMS, INC., |
| 2017/0159,498 | Pumped Thermal Systems with Dedicated Compressor/Turbine Pairs | Feb 23, 17 | Jun 08, 17 | GOOGLE INC., GIGAWATT DAY STORAGE SYSTEMS, INC., |