David A. Lesch
25Patents
7h-index
40Co-inventors
69Inventor score
Filing activity: Feb 28, 1986 → Jul 11, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7998246B2 | Gas separations using high performance mixed matrix membranes | Performing Operations; Transporting | 33 | Active |
| US6773694B1 | Process for synthesizing molecular sieves | Emerging Cross-Sectional Technologies | 33 | Expired |
| US7758751B1 | UV-cross-linked membranes from polymers of intrinsic microporosity for liquid separations | Performing Operations; Transporting | 28 | Active |
| US5296208A | Molecular sieve synthesis | Chemistry; Metallurgy | 22 | Expired |
| US8048198B2 | High performance mixed matrix membranes incorporating at least two kinds of molecular sieves | Performing Operations; Transporting | 10 | Active |
| US5898090A | Aromatic isomerization using a modified silicoaluminophosphate | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5516957A | Discrete molecular sieve and use | Performing Operations; Transporting | 7 | Expired |
| US5478787A | Discrete molecular sieve and use | Performing Operations; Transporting | 7 | Expired |
| US5365008A | Olefin isomerization process | Chemistry; Metallurgy | 7 | Expired |
| US4973460A | Lithium-aluminum-phosphorus-silicon-oxide molecular sieve compositions | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7442365B1 | Process for preparing molecular sieve beads | Performing Operations; Transporting | 6 | Expired |
| US7112316B1 | Process for preparing molecular sieves via continuous addition of nutrients | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7815712B2 | Method of making high performance mixed matrix membranes using suspensions containing polymers and polymer stabilized molecular sieves | Emerging Cross-Sectional Technologies | 5 | Active |
| US8816003B2 | High plasticization-resistant cross-linked polymeric membranes for separations | Emerging Cross-Sectional Technologies | 5 | Active |
| US8083833B2 | Flexible template-directed microporous partially pyrolyzed polymeric membranes | Emerging Cross-Sectional Technologies | 4 | Active |
| US7320782B1 | Process for preparing a layered molecular sieve composition | Performing Operations; Transporting | 4 | Expired |
| US8226862B2 | Molecular sieve/polymer asymmetric flat sheet mixed matrix membranes | Performing Operations; Transporting | 3 | Active |
| US8262779B2 | Microporous aluminophosphate molecular sieve membranes for highly selective separations | Emerging Cross-Sectional Technologies | 3 | Active |
| US4789535A | Lithium-aluminum-phosphorus-oxide molecular sieve compositions | Chemistry; Metallurgy | 2 | Expired |
| US4938937A | Crystalline aluminophosphate composition | Performing Operations; Transporting | 2 | Expired |
| US10981143B2 | Binderless zeolitic adsorbents | Chemistry; Metallurgy | 0 | Active |
| US11033879B2 | Binderless zeolitic adsorbents | Chemistry; Metallurgy | 0 | Active |
| US7790133B2 | Multi-component hydrogen storage material | Emerging Cross-Sectional Technologies | 0 | Active |
| US11697111B2 | Selective hydroisomerization catalyst | Emerging Cross-Sectional Technologies | 0 | Active |
| US12285746B2 | Selective hydroisomerization catalyst | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.