Gregory Ralph Harrod
25Patents
14h-index
23Co-inventors
81Inventor score
Filing activity: Jun 30, 1994 → Mar 3, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8219249B2 | Indoor air quality controllers and user interfaces | Emerging Cross-Sectional Technologies | 289 | Active |
| US5991694A | Method and apparatus for determining the location of seedlings during agricultural production | Human Necessities | 154 | Expired |
| US5631658A | Method and apparatus for operating geography-altering machinery relative to a work site | Physics | 151 | Expired |
| US7451606B2 | HVAC system analysis tool | Physics | 101 | Active |
| US7849698B2 | Method and apparatus to sense and establish operation mode for an HVAC control | Mechanical Engineering; Lighting; Heating | 87 | Active |
| US5850341A | Method and apparatus for monitoring material removal using mobile machinery | Physics | 75 | Expired |
| US7085626B2 | Method and apparatus to prevent low temperature damage using an HVAC control | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US5935183A | Method and system for determining the relationship between a laser plane and an external coordinate system | Physics | 67 | Expired |
| US5951613A | Apparatus and method for determining the position of a work implement | Emerging Cross-Sectional Technologies | 65 | Expired |
| US5546093A | System and method for providing navigation signals to an earthmoving or construction machine | Physics | 65 | Expired |
| US7562536B2 | Method and apparatus to sense and control compressor operation in an HVAC system | Mechanical Engineering; Lighting; Heating | 61 | Active |
| US8826165B2 | System status user interfaces | Emerging Cross-Sectional Technologies | 43 | Active |
| US5944764A | Method for monitoring the work cycle of earth moving machinery during material removal | Fixed Constructions | 21 | Expired |
| US5864060A | Method for monitoring the work cycle of mobile machinery during material removal | Fixed Constructions | 14 | Expired |
| US8332075B2 | Transition temperature adjustment user interfaces | Emerging Cross-Sectional Technologies | 12 | Active |
| US5526002A | Method and apparatus for operating geography-altering machinery relative to a work site | General | 11 | Revoked |
| US8346397B2 | Airflow adjustment user interfaces | Emerging Cross-Sectional Technologies | 8 | Active |
| US6140959A | Self-calibrating GPS reference station and method | Physics | 8 | Expired |
| US6026341A | Method for detecting truck dump occurrences | Performing Operations; Transporting | 5 | Expired |
| USD554243S1 | Panel sections for an air handler door | General | 4 | Expired |
| US7299111B2 | Method of clearing an HVAC control fault code memory | Physics | 3 | Active |
| USD550338S1 | Panel sections for an air handler door | General | 2 | Expired |
| USD549809S1 | Panel sections for an air handler door | General | 0 | Expired |
| US8011197B2 | Apparatus to sense and control compressor operation in an HVAC system | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11994308B2 | Multi-factor furnace and heat pump control system | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.