Michael E. Brennan
38Patents
15h-index
14Co-inventors
74Inventor score
Filing activity: May 30, 1974 → Oct 30, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4036881A | Preparation of polyalkylene polyamines | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4044053A | Preparation of polyalkylene polyamines | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4469824A | Liquid terephthalic ester polyols and polyisocyanurate foams therefrom | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4547591A | Preparation of linear polyethylenepolyamines with silica-alumina catalysts | Chemistry; Metallurgy | 34 | Expired |
| US4485196A | Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4439550A | Aromatic polyols made from recycled polyethylene terephthalate waste streams, alkylene glycol and dibasic acid waste streams | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4332595A | Ether amine detergent and motor fuel composition containing same | Chemistry; Metallurgy | 27 | Expired |
| US4103087A | Production of di-(N,N-disubstituted amino) alkanes | Emerging Cross-Sectional Technologies | 22 | Expired |
| US3959374A | Process for the preparation of mixed isomeric methylene-bridged polycyclohexylpolyamines | Chemistry; Metallurgy | 21 | Expired |
| US4448997A | Preparation of linear polyethylenepolyamines with an aluminum phosphate catalyst | Chemistry; Metallurgy | 21 | Expired |
| US4439551A | Packaging foam polyurethane composition employing novel polyol blend | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4506090A | Aromatic polyols made from polyethylene terephthalate scrap, glycols and aromatic carbonyl-containing compounds | Chemistry; Metallurgy | 21 | Expired |
| US4439549A | Novel aromatic polyester polyol mixtures made from polyethylene terephthalate residues and alkylene oxides | Chemistry; Metallurgy | 19 | Expired |
| US4500655A | Alkoxylated modified Mannich condensates and manufacture of rigid polyurethane foams therewith | Chemistry; Metallurgy | 16 | Expired |
| US4820810A | Urea catalyst for preparation of sucrose polyols useful for rigid polyurethane foams | Chemistry; Metallurgy | 15 | Expired |
| US4602091A | Production of ethylenediamine and N-aminoethylpiperazine from piperazine | Chemistry; Metallurgy | 15 | Expired |
| US4469823A | Flexible polyurethane foams made using an aromatic polyester polyol | Chemistry; Metallurgy | 14 | Expired |
| US4444918A | Aromatic polyols made from waste streams from the manufacture of terephthalic acids, alkylene glycols and dibasic acids | Chemistry; Metallurgy | 12 | Expired |
| US4049657A | Preparation of N-(aminoalkyl)piperazine | Chemistry; Metallurgy | 12 | Expired |
| US4485195A | Alkoxylated Mannich condensates having fire retardancy properties and manufacture of rigid polyurethane foam therewith | Chemistry; Metallurgy | 11 | Expired |
| US4117227A | Production of N-(substituted) morpholine | Chemistry; Metallurgy | 11 | Expired |
| US4439546A | Scrap rim polyurethane modified extender polyols | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4487852A | Modified Mannich condensates and manufacture of rigid polyurethane foam with alkoxylation products thereof | Chemistry; Metallurgy | 9 | Expired |
| US4681965A | Phosphorus containing aromatic amino polyols | Chemistry; Metallurgy | 9 | Expired |
| US4095022A | Production of bis-(morpholino-N-alkyl) ethers | Chemistry; Metallurgy | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.