Jan Van Dijk
140Patents
5h-index
12Co-inventors
71Inventor score
Filing activity: Sep 27, 1974 → Jan 15, 2025
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4568346A | Hypodermic syringe having a telescopic assembly between cartridge and medicament holder | Human Necessities | 54 | Expired |
| US4475903A | Disposable hypodermic syringe | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4192818A | Compounds having pharmacological properties | Chemistry; Metallurgy | 16 | Expired |
| US3937841A | Treatment of depression | Chemistry; Metallurgy | 11 | Expired |
| US5023192A | Method of manufacturing a bipolar transistor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4071686A | Novel benzylidene amino-oxyalkyl carboxylic acids and carboxylic acid derivatives | Human Necessities | 5 | Expired |
| US4317835A | Novel basic substituted-alkylidenamino-oxyalkyl-carboxylic acid esters | Chemistry; Metallurgy | 4 | Expired |
| US10543458B2 | Process for treating a hydrogen sulphide and mercaptans comprising gas | Emerging Cross-Sectional Technologies | 2 | Active |
| USPP27889P3 | Anthurium plant named ‘ANTHDUBAQ’ | General | 2 | Active |
| US5266589A | Method of increasing the muscle/fat ratio in agricultural domestic animals | Human Necessities | 2 | Expired |
| US4235931A | Compounds having pharmacological properties | Chemistry; Metallurgy | 2 | Expired |
| USPP28224P3 | Anthurium plant named ‘ANTHDASYM’ | General | 1 | Active |
| USPP22629P2 | Anthurium plant named ‘Anthcaszim’ | General | 1 | Active |
| USPP12115P | Anthurium plant named `Pink Champion` | General | 1 | Expired |
| USPP30966P2 | Anthurium plant named ‘ANTHFUBE’ | General | 1 | Active |
| US9902975B2 | Process for the biological conversion of bisulphide into elemental sulphur | Chemistry; Metallurgy | 1 | Active |
| USPP34252P2 | Anthurium plant named ‘AN2608442’ | General | 1 | Active |
| USPP30921P2 | Anthurium plant named ‘ANTHFRAXK’ | General | 1 | Active |
| US4196216A | Novel benzylidene amini-oxyalkyl carboxylic acids and carboxylic acid derivatives | Human Necessities | 1 | Expired |
| USPP27137P3 | Anthurium plant named ‘ANTHINFAM’ | General | 1 | Active |
| USPP33711P2 | Anthurium plant named ‘ANTHFUNCNI’ | General | 1 | Active |
| USPP20254P2 | Anthurium plant named ‘Antholodoj’ | General | 1 | Active |
| USPP30527P2 | Anthurium plant named ‘ANTHFOFUN’ | General | 1 | Active |
| USPP20282P2 | Anthurium plant named ‘Anthabudon’ | General | 1 | Active |
| USPP20283P2 | Anthurium plant named ‘Antholyl’ | General | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.