Klaus Bruns
44Patents
6h-index
24Co-inventors
69Inventor score
Filing activity: May 29, 1975 → Oct 18, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4033993A | Cycloalkyl carbonates | Chemistry; Metallurgy | 21 | Expired |
| US4080309A | Carbonic acid ester perfumes | Chemistry; Metallurgy | 16 | Expired |
| US4126585A | 2-Methyl-2-ethyl-hexanoate ester perfume compositions | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5274134A | Process for the stereoselective preparation of 8.alpha., 12-oxido-13, 14,15, 16-tetranorlabdane | Chemistry; Metallurgy | 9 | Expired |
| US4719043A | Isomeric 1-alkyl/alkenyl-2,2,4(2,4,4)-trimethyl cyclopentan-1-ols as perfumes | Chemistry; Metallurgy | 7 | Expired |
| US4302363A | Perfume compositions containing 4(5)-acetyl-7,7,9(7,9,9)-trimethylbicyclo[4.]non-1-ene | Chemistry; Metallurgy | 7 | Expired |
| US3993697A | Odoriferous cycloalkyl acetals | Chemistry; Metallurgy | 5 | Expired |
| US4130509A | Perfume compositions containing cis- and trans-trimethylcyclohexylethyl ethers | Chemistry; Metallurgy | 5 | Expired |
| US4283561A | Mixture of aldehydes resulting from hydroformylation of .alpha.-terpinene | Chemistry; Metallurgy | 5 | Expired |
| US4435315A | Use of alkyl-substituted 1,3-dioxolanes as perfuming agents | Chemistry; Metallurgy | 4 | Expired |
| US5247100A | Process for the production of sclareolide | Chemistry; Metallurgy | 4 | Expired |
| US4904640A | 2-alkylidene-3,3,5(3,5,5)-trimethyl cyclopentanones | Chemistry; Metallurgy | 4 | Expired |
| US4113664A | 2,4-Dioxa-spiro(5,5)undec-8-ene perfume compositions | Chemistry; Metallurgy | 4 | Expired |
| US4289660A | Perfume compositions containing tricyclo[5.2.1.0.sup.2.6 ]decane carboxylic acid esters | Chemistry; Metallurgy | 4 | Expired |
| US4334100A | Production of aldehydes | Chemistry; Metallurgy | 4 | Expired |
| US4294727A | Perfume composition containing 4,5-dioxa-5-alkyl-tricyclo[7.2.1.0 .sup.2,8 ]dodec-10-enes and its use as an odorant | Chemistry; Metallurgy | 3 | Expired |
| US4267075A | Perfume compositions containing esters of 3,5,5-trimethylhexanoic acid | Chemistry; Metallurgy | 3 | Expired |
| US4372880A | Use of substituted 2-(1-methylbutyl)-1,3-dioxanes as perfuming agents | Chemistry; Metallurgy | 3 | Expired |
| US4124541A | Dioxa bicyclo dodecane and -hexadecane perfume compositions | Chemistry; Metallurgy | 3 | Expired |
| US4146506A | Perfume compositions with 4-isopropyl-5,5-dimethyl-1,3-dioxane | Chemistry; Metallurgy | 3 | Expired |
| US4528126A | 2,4-Dioxa-7,10-methano-spiro [5,5] undecanes and their use in perfumery compositions | Chemistry; Metallurgy | 3 | Expired |
| US5504066A | Pentene derivatives, their production and use | Chemistry; Metallurgy | 2 | Expired |
| US4613457A | 2-methyl pentanoic acid esters and perfume compositions containing them | Chemistry; Metallurgy | 2 | Expired |
| US4555359A | Trimethylbicyclo [4.3.0] non-1-ene derivatives | Chemistry; Metallurgy | 2 | Expired |
| US4351772A | 6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.