Stephen A. Wald
20Patents
9h-index
29Co-inventors
75Inventor score
Filing activity: Dec 21, 1976 → Dec 7, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6627646B2 | Norastemizole polymorphs | Human Necessities | 182 | Expired |
| US6268533A | Formoterol process | Human Necessities | 74 | Expired |
| US6040344A | Formoterol process | Human Necessities | 49 | Expired |
| US4257791A | Filter | Performing Operations; Transporting | 48 | Expired |
| US4164400A | Filters | Performing Operations; Transporting | 44 | Expired |
| US5057427A | Method for resolution of stereoisomers | Chemistry; Metallurgy | 39 | Expired |
| US5077217A | Method for membrane reactor resolution of stereoisomers | Performing Operations; Transporting | 38 | Expired |
| US4350727A | Synergistic textile composite | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4132821A | Textile fabric with leather-like appearance | Emerging Cross-Sectional Technologies | 11 | Expired |
| US9884813B1 | Pharmaceutically acceptable salts of B-guanidinopropionic acid with improved properties and uses thereof | Chemistry; Metallurgy | 8 | Active |
| US6025177A | Asymmetric grignard synthesis with cyclic 1,2 aminoalcohols | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5198568A | Compounds useful in enzymatic resolution systems and their preparation | Performing Operations; Transporting | 3 | Expired |
| US6147077A | 2R,4S-hydroxyitraconazole isomers | Human Necessities | 2 | Expired |
| US11174220B2 | Metal salts and uses thereof | Chemistry; Metallurgy | 2 | Active |
| US11214536B2 | Polymorphs and uses thereof | Chemistry; Metallurgy | 2 | Active |
| US5196568A | Compounds useful in enzymatic resolution systems and their preparation | Performing Operations; Transporting | 2 | Expired |
| US11459292B2 | Metal salts and uses thereof | Chemistry; Metallurgy | 2 | Active |
| US11878956B2 | Metal salts and uses thereof | Chemistry; Metallurgy | 1 | Active |
| US12258303B2 | Metal salts and uses thereof | Chemistry; Metallurgy | 0 | Active |
| US6013830A | Asymmetric grignard synthesis with cyclic 1,2 aminoalcohols | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.