Marcel Sychra
5Patents
2h-index
6Co-inventors
40Inventor score
Filing activity: Jun 12, 1990 → Jul 26, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5759259A | Air entraining agent for concrete and mortar mixtures | Chemistry; Metallurgy | 4 | Expired |
| US5126462A | Sulfur-containing aromatic tetracarboxylic acids and derivatives thereof | Chemistry; Metallurgy | 3 | Expired |
| US6380299B1 | Stable aqueous dispersions for sizing paper | Textiles; Paper | 1 | Expired |
| US5164476A | Soluble and/or fusible polyimides and polyamidoimides | Chemistry; Metallurgy | 1 | Expired |
| US5378799A | Heat-stable polyimides and polyamide-imides with modified benzhydrol structural elements and their preparation | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.