John G. Verkade
20Patents
7h-index
15Co-inventors
66Inventor score
Filing activity: Dec 20, 1979 → Feb 17, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4885376A | New types of organometallic reagents and catalysts for asymmetric synthesis | Performing Operations; Transporting | 53 | Expired |
| US7790651B2 | Porous silica and metal oxide composite-based catalysts for conversion of fatty acids and oils to biodiesel | Emerging Cross-Sectional Technologies | 35 | Active |
| US5464656A | Method of applying single-source molecular organic chemical vapor deposition agents | Chemistry; Metallurgy | 25 | Expired |
| US4276195A | Converting homogeneous to heterogeneous catalysts | Performing Operations; Transporting | 23 | Expired |
| US5344948A | Single-source molecular organic chemical vapor deposition agents and use | Chemistry; Metallurgy | 21 | Expired |
| US5051533A | Prophosphatrane compounds as proton abstracting reagents | Chemistry; Metallurgy | 13 | Expired |
| US4626246A | Medical drainage apparatus | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5260436A | Method for synthesis of triarylisocyanurates from aryl isocyanates using triazaprophosphatrane catalysts | Chemistry; Metallurgy | 7 | Expired |
| US5367084A | Preparation of pyrrol and oxazole compounds: formation of porphyrins and c-acyl-.alpha.-amino acid esters therefrom | Chemistry; Metallurgy | 7 | Expired |
| US5437696A | Method of removal of sulfur from coal and petroleum products | Chemistry; Metallurgy | 6 | Expired |
| US8436057B1 | Anion exchange membrane | Chemistry; Metallurgy | 4 | Active |
| US5672717A | Preparation of pyrrol and oxazole compounds; formation of porphyrins and C-acyl-.alpha.-amino acid esters therefrom | Chemistry; Metallurgy | 3 | Expired |
| US5509945A | Mild desulfurization of sulfur-bearing materials | Chemistry; Metallurgy | 2 | Expired |
| US5446166A | Preparation of pyrrol and oxazole compounds: formation of porphyrins and C-acyl-.alpha.-amino acid esters therefrom | Chemistry; Metallurgy | 2 | Expired |
| US5554764A | Preparation of pyrrol and oxazole compounds: formation of C-acyl-.alpha.-amino acid esters therefrom | Chemistry; Metallurgy | 1 | Expired |
| US7276627B2 | One pot sequential reactions and novel products produced thereby | Chemistry; Metallurgy | 1 | Expired |
| US7642391B1 | Palladium-catalyzed coupling of aryl halides with alkynes | Chemistry; Metallurgy | 1 | Active |
| US7385058B1 | Triaminophosphine ligands for carbon-nitrogen and carbon-carbon bond formation | Chemistry; Metallurgy | 0 | Expired |
| US7541462B2 | Triaminophosphine ligands for carbon-nitrogen and carbon-carbon bond formation | Chemistry; Metallurgy | 0 | Active |
| US5698737A | Prophosphatrane deprotonation of solvents | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.