Jon P. Hartfield
23Patents
9h-index
29Co-inventors
75Inventor score
Filing activity: May 25, 1995 → Jul 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6293112A | Falling film evaporator for a vapor compression refrigeration chiller | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US5645124A | Falling film evaporator with refrigerant distribution system | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5561987A | Falling film evaporator with vapor-liquid separator | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US6167713A | Falling film evaporator having two-phase distribution system | Emerging Cross-Sectional Technologies | 47 | Expired |
| US6516627B2 | Flowing pool shell and tube evaporator | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5778695A | Liquid level sensor using refrigrant subcooling | Physics | 38 | Expired |
| US5836382A | Evaporator refrigerant distributor | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5588596A | Falling film evaporator with refrigerant distribution system | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5638691A | Falling film evaporator with refrigerant distribution system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US9032753B2 | Electronics cooling using lubricant return for a shell-and-tube style evaporator | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US9677795B2 | Refrigerant management in a HVAC system | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US11927375B2 | Suction heat exchanger de-misting function | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9851130B2 | Electronics cooling using lubricant return for a shell-and-tube style evaporator | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10422559B2 | Refrigerant level management in heat exchangers of an HVAC chiller | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US12320566B2 | Suction gas heat exchanger control and utilization | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11365912B2 | Suction duct and multiple suction ducts inside a shell of a flooded evaporator | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10627139B2 | Suction duct and multiple suction ducts inside a shell of a flooded evaporator | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10697717B2 | Water head for an evaporator | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10480872B2 | Turbulators in enhanced tubes | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9903663B2 | Brazed heat exchanger with fluid flow to serially exchange heat with different refrigerant circuits | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10859297B2 | Refrigerant management in HVAC systems | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12092378B2 | Refrigerant management in HVAC systems | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11976854B2 | Enhanced tube for direct expansion evaporators | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.