Mark McMasters
46Patents
5h-index
9Co-inventors
58Inventor score
Filing activity: Sep 20, 2007 → Sep 27, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD640437S1 | Air conditioning maintenance cart assembly | General | 14 | Expired |
| US8342577B2 | Magnetic quick disconnect fitting | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US8079226B2 | Method for accurately recharging A/C systems | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8272228B2 | Apparatus to clear oil from the hoses and front end of a recovery recharge machine | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US7832222B2 | Background tank fill based on refrigerant composition | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US8800306B2 | Portable refrigerant recovery machine | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8272227B2 | System and method for accurately recharging an air conditioning system | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9194620B2 | Methods and systems for reducing refrigerant loss during air purge | Emerging Cross-Sectional Technologies | 3 | Active |
| US9273888B2 | Refrigerant recovery device and method | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9464833B2 | Refrigerant conversion kit and method for a refrigerant recovery unit | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8572992B2 | Method for recovery and recharge of blend refrigerants with blend sent for reclamation | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9297564B2 | Refrigerant recovery unit with diagnostic interface | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8590335B2 | Method and apparatus for clearing oil inject circuit for changing oil types | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8661836B2 | Apparatus to clear oil from the hoses and front end of a recovery recharge machine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7937957B2 | Method for using high pressure refrigerant for leak checking a system | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8590321B2 | Vacuum pump oil changing method and apparatus | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9447998B2 | Method and apparatus for improving the charge accuracy of a refrigerant recovery unit | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9366465B2 | System and method for improving charge accuracy by temperature compensation | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9207006B2 | Method for accurately recharging A/C systems | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10101067B2 | Heat exchanger for a refrigerant service system | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9857111B2 | Method and apparatus for recovering refrigerant from an air conditioning system | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7992721B2 | Method and apparatus for confirming that a filter drier has been replaced | Emerging Cross-Sectional Technologies | 1 | Active |
| US8122731B2 | Method and apparatus for clearing oil inject circuit for changing oil types | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US8661839B2 | Background tank fill based on refrigerant composition | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US8406931B2 | A/C service tool controller | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.