Daniel Helmlinger
22Patents
5h-index
14Co-inventors
66Inventor score
Filing activity: Mar 2, 1973 → Feb 16, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6326349A | Methylcyclotetradec-5-en-1-ones | Chemistry; Metallurgy | 11 | Expired |
| US3948816A | Mercapto carboxylic acid esters | Chemistry; Metallurgy | 8 | Expired |
| US3954843A | Mercapto carboxylic acid esters | Chemistry; Metallurgy | 7 | Expired |
| US5525589A | Cyclic compounds | Chemistry; Metallurgy | 6 | Expired |
| US6255276A | Odorant compositions containing macrocycles and processes for manufacturing the same | Chemistry; Metallurgy | 6 | Expired |
| US5292902A | Process for the manufacture of odorants and intermediates used therein | Chemistry; Metallurgy | 5 | Expired |
| US3943177A | Compounds of the sinensal type, intermediates and process therefor | Chemistry; Metallurgy | 4 | Expired |
| US5214160A | Acetyl-tri-and-tetramethyl-octahydronaphthalenes and fragrance compositions containing same | Chemistry; Metallurgy | 4 | Expired |
| US4277618A | 2-Substituted-1-acetoxy and hydroxy-1-methyl-cyclohexanes | Chemistry; Metallurgy | 4 | Expired |
| US4634548A | Novel bicyclic epoxides and compositions | Chemistry; Metallurgy | 4 | Expired |
| US4617146A | Substituted bicyclo[4.3.0]non-1(6)-en-8-yl methyl ketones and fragrance and flavor compositions | Chemistry; Metallurgy | 4 | Expired |
| US5180709A | Acetyl-tri-and-tetramethyl-octahydronaphthalenes and fragrance compositions containing same | Chemistry; Metallurgy | 3 | Expired |
| US4162266A | Trimethyl-acetyl octalins, process for making and fragrance compositions containing same | Chemistry; Metallurgy | 2 | Expired |
| US5164365A | 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone and fragrance compositions containing same | Chemistry; Metallurgy | 2 | Expired |
| US4375428A | 2-Substituted-1-acetoxy and hydroxy-1-methyl-cyclohexanes | Chemistry; Metallurgy | 1 | Expired |
| US5113021A | Process for the manufacture of a mixture of .alpha.- and .beta.-irone | Chemistry; Metallurgy | 1 | Expired |
| US3947505A | 1-Halo-dodeca-tri(tetra)-ene | Chemistry; Metallurgy | 1 | Expired |
| US5015779A | Process for the manufacture of 4-(2-butenylidene)-3,5,5-trimethyl-2-cyclohexen-1-one | Chemistry; Metallurgy | 0 | Expired |
| US5329053A | Process for the manufacture of known odorants | Chemistry; Metallurgy | 0 | Expired |
| US3996387A | Flavoring with 3,7-dimethyl-octa-2,6-dienyl-mercaptan | Chemistry; Metallurgy | 0 | Expired |
| US5072019A | Process for the manufacture of 4-(2-butenylidene)-3,5,5-trimethyl-2-cyclohexen-1-one | Chemistry; Metallurgy | 0 | Expired |
| US5151411A | Tricyclic ketones and fragrance compositions containing same | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.