| Patent No. | Patent Title: |
| 4986727 | Pressure-operated oil and gas well swabbing device |
| 4943210 | Pump control system, level sensor switch and switch housing |
| 4932848 | Pump unit |
| 4930992 | Control apparatus of variable delivery pump |
| 4930991 | Piston pump for high performance liquid chromatography |
| 4929159 | Variable-displacement rotary compressor |
| 4925370 | Electric motor driven pump with an automatic transmission |
| 4913624 | Low pulsation displacement pump |
| 4911618 | Cryocompressor with a self-centering piston |
| 4906165 | Flow meter for a positive displacement pump |
| 4904162 | Fuel supplying pump |
| 4898389 | Impact indicating golf training device |
| 4897023 | Liquid pump assembly |
| 4887941 | Method and apparatus for starting series-coupled vacuum pumps |
| 4886431 | Peristaltic pump having independently adjustable cartridges |
| 4886422 | Control apparatus of variable delivery pump |
| 4884953 | Solar powered pump with electrical generator |
| 4883409 | Pumping apparatus for delivering liquid at high pressure |
| 4881873 | Capacitance level sensor for a bilge pump |
| 4880366 | Plastic hand lift pressure pump |
| 4875842 | Axial flow fluid compressor |
| 4874299 | High precision pump |
| 4872820 | Axial flow fluid compressor with angled blade |
| 4871304 | Axial flow fluid compresser |
| 4869647 | Circular electromagnetic flow coupler |
| 4867645 | Double diaphragm pressure switch for a well water system |
| 4867652 | Balanced rolling rotor motor compressor |
| 4863070 | Meter pump for liquid and/or low-viscosity substances |
| 4860857 | Pistonless air powered lubricating system |
| 4856617 | Railway lubricating system and method |
| 4856965 | Control system of pumping operation using AC exciting generator-m... |
| 4856969 | Fluid powered diaphragm pump with cycle timer |
| 4854822 | Series impeller air pump for liquid sprayer |
| 4854833 | Electromagnetically reciprocating apparatus with adjustable bounc... |
| 4848242 | Linear induction propelled track guided runner |
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