Jacob Frank De Groot
16Patents
5h-index
10Co-inventors
63Inventor score
Filing activity: Feb 4, 1986 → Jul 4, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6562267B1 | Process for the manufacture of a mineral wool plant growth substrate | Human Necessities | 57 | Expired |
| US5218783A | Agroblock, such as agroplug, agroplug system and a plug strip therefor | Human Necessities | 34 | Expired |
| US5992093A | Growth substrate comprising short transversally extending mineral wool fibres | Human Necessities | 8 | Expired |
| USD733593S1 | Moisture sensor and controller | General | 6 | Active |
| US6183531A | Mineral wool plant substrate | Human Necessities | 5 | Expired |
| US6042630A | Coherent growth substrate | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6389748B1 | Plant cubes | Human Necessities | 4 | Expired |
| USD734183S1 | Moisture sensor and controller | General | 4 | Active |
| USD553516S1 | Sensor | General | 3 | Expired |
| US10342182B2 | Plant growth system | Human Necessities | 2 | Active |
| USD733592S1 | Moisture sensor and controller | General | 2 | Active |
| US6032413A | Hydrophilic plant growth substrate, comprising a furan resin | Human Necessities | 1 | Expired |
| US11026372B2 | Plant growth system | Emerging Cross-Sectional Technologies | 0 | Active |
| US10492388B2 | Plant growth system | Emerging Cross-Sectional Technologies | 0 | Active |
| US4635018A | Core containing amorphous ferromagnetic strip material | Electricity | 0 | Expired |
| US10234438B2 | Device and method for measuring plant growth conditions | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.