Thomas Haas
99Patents
18h-index
181Co-inventors
87Inventor score
Filing activity: Sep 24, 1992 → Oct 7, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6877023B1 | Messaging system for delivering data in the form of portable message formats between message clients | Electricity | 73 | Expired |
| US5817870A | Process for the production of malonic acid or a salt thereof | Chemistry; Metallurgy | 72 | Expired |
| US5334778A | Process for the production of 1,3-propanediol | Chemistry; Metallurgy | 66 | Expired |
| US5387720A | Process for the production of acrolein | Chemistry; Metallurgy | 63 | Expired |
| US5364984A | Process for the preparation of 1,3-propanediol by the hydrogenation of hydroxypropionaldehyde | Chemistry; Metallurgy | 49 | Expired |
| US5364987A | Process for the preparation of 1,3-propanediol | Chemistry; Metallurgy | 45 | Expired |
| US5276201A | Process for the production of 3-hydroxyalkanals | Chemistry; Metallurgy | 41 | Expired |
| US6232511A | Process for the production of 1,3-propanediol by hydrogenating 3-hydroxypropionaldehyde | Chemistry; Metallurgy | 38 | Expired |
| US5284979A | Process for the prepartion of 3-hydroxyalkanals | Chemistry; Metallurgy | 36 | Expired |
| US6297408A | Two-stage process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal | Chemistry; Metallurgy | 33 | Expired |
| US5426249A | Process for the simultaneous production of 1,2- and 1,3-propanediol | Emerging Cross-Sectional Technologies | 31 | Expired |
| US8703451B2 | Method for the production of free carboxylic acids | Chemistry; Metallurgy | 30 | Active |
| US8809576B2 | Method for producing a free acid from the salt thereof | Chemistry; Metallurgy | 28 | Active |
| US6342646B1 | Catalytic hydrogenation of 3-hydroxypropanal to 1,3-propanediol | Chemistry; Metallurgy | 26 | Expired |
| US8378127B2 | Method for producing 2,6-dioxabicyclo-(3.3.0)-octane-4,8-dione | Chemistry; Metallurgy | 21 | Active |
| US6265623A | Process for the reductive cleavage of linear and cyclic acetals especially formals | Chemistry; Metallurgy | 20 | Expired |
| US7030052B2 | Process for hydrogenating an aromatic amine in the presence of a supported ruthenium catalyst | Chemistry; Metallurgy | 19 | Expired |
| US6764671B2 | Direct synthesis of hydrogen peroxide and integration thereof into oxidation processes | Performing Operations; Transporting | 18 | Expired |
| US7091384B2 | Process for increasing the selectivity of the hydrogenation of 4,4′-diaminodiphenylmethane to 4,4′-diaminodicyclohexylmethane in the presence of an N-alkyl-4,4′-diaminodiphenylmethane | Chemistry; Metallurgy | 17 | Expired |
| US6392062B1 | Method for carrying out homogeneously catalyzed reactions | Performing Operations; Transporting | 16 | Expired |
| US6013812A | Process for the production of five-membered or six-membered cyclic ethers, in particular of anhydropolyols | Chemistry; Metallurgy | 16 | Expired |
| US6232512A | Method for reducing the content of acetals or ketals in alcohol-containing reaction mixtures | Chemistry; Metallurgy | 16 | Expired |
| US6878836B2 | Process for the epoxidation of propene | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7507862B2 | Process for hydrogenating an aromatic amine in the presence of a supported ruthenium catalyst | Chemistry; Metallurgy | 15 | Active |
| US9012227B2 | ω-Aminocarboxylic acids, ω-aminocarboxylic acid esters, or recombinant cells which produce lactams thereof | Chemistry; Metallurgy | 15 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.