Description
Class F03C : POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
Subclass 1/007: Reciprocating-piston liquid engines with single cylinder, double-acting piston
F03C 1/007
Sub-Class
Stats
- 12 US PATENTS IN FORCE
- 2 US APPLICATIONS PENDING
- 2 Total Patent Owners
- 24 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12000369 | Thermal energy storage system including a plurality of vessels each having hot and cold liquid portions separated by a floating piston | Nov 04, 22 | Jun 04, 24 | NORWICH TECHNOLOGIES, INC. |
| 11837991 | Fluid driven solar panel cleaning system | Sep 22, 19 | Dec 05, 23 | Not available |
| 11578693 | Thermal energy storage system including a vessel having hot and cold liquid portions separated by floating piston | Dec 14, 21 | Feb 14, 23 | NORWICH TECHNOLOGIES, INC. |
| 11519504 | Piston ring for floating piston in a thermal energy storage system | Dec 14, 21 | Dec 06, 22 | NORWICH TECHNOLOGIES, INC. |
| 11441534 | Fluid-driven linear motor | Feb 18, 20 | Sep 13, 22 | Flapump AS |
| 10746203 | Side inflow and side outflow hydraulic pump | Apr 16, 18 | Aug 18, 20 | Not available |
| 10330199 | Hydraulic motor capable of many different applications able to use low pressure or high pressure fluids to operate | Apr 09, 15 | Jun 25, 19 | Not available |
| 10247168 | Rotational mechanical transformer apparatus and methods | Apr 27, 17 | Apr 02, 19 | Not available |
| 9695840 | Reversible hydraulic pressure converter employing tubular valves | Aug 18, 14 | Jul 04, 17 | Not available |
| 9599128 | Piston pump and motor | Apr 11, 14 | Mar 21, 17 | THERMASS INNOVATIONS B. V |
| 9254072 | Hydraulic motor capable of many different applications able to use low-pressure or high-pressure fluids to operate | Sep 26, 12 | Feb 09, 16 | Not available |
| 7752957 | Hydraulic motor | Dec 14, 07 | Jul 13, 10 | Alfa Laval Moatti |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0280,074 | Thermal Energy Storage System Including a Plurality of Vessels Each Having Hot and Cold Liquid Portions Separated by a Floating Piston | May 02, 24 | Aug 22, 24 | Not available |
| 2018/0230,963 | Device Which Applies Work To Outside With Environmental Thermal Energy | Aug 11, 17 | Aug 16, 18 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 25 Months (last 2 years Issuances)
- 25 Months (last 5 years Issuances)