Inventor · Hoffman Estates, IL, US

David A. Lesch

25Patents
7h-index
40Co-inventors
69Inventor score

Filing activity: Feb 28, 1986 → Jul 11, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
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.