WALLAC OY
128Patents
45Active
128Granted
48Portfolio score
Filing activity: Nov 2, 1973 → Feb 1, 2022 · 19 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5028545A | Biospecific multianalyte assay method | Physics | 223 | Expired |
| US4374120A | Fluorescence spectroscopy assay means with fluorescent chelate of a lanthanide | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5637509A | Modulated homogeneous fluorescence biospecific affinity assay employing fluorescing lanthanide chelates as covalent labels | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5780857A | Apparatus for imaging biochemical samples on substrates | Physics | 70 | Expired |
| US6244119A | Multichannel pipette system and pipette tips therefor | Physics | 64 | Expired |
| US5346303A | Shaker/incubator | Physics | 60 | Expired |
| US5998146A | Homogeneous luminescence assay method based on energy transfer | Physics | 45 | Expired |
| US4808541A | Determination method utilizing reagents covalently labelled with essentially non-fluorescent lanthanide chelates in combination with time-resolved fluorescence spectroscopy and the reagents to be used in the method | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5460057A | Method and apparatus for handling samples and sample collection system | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5246869A | Method for the simultaneous assay of ligands | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6051191A | Microplates | Physics | 32 | Expired |
| US5571897A | Luminescent lanthanide chelates | Physics | 30 | Expired |
| US5316909A | Method for increasing fluorescence | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5216134A | Spectrofluorometric method and compounds that are of value for the method | Physics | 29 | Expired |
| US4587223A | Method for quantitative determination of a biospecific affinity reaction | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5202423A | Terpyridine derivatives | Physics | 27 | Expired |
| US4565790A | Method for fluorescence spectroscopic determination of a biologically active substance | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6042785A | Multilabel measurement instrument | Physics | 26 | Expired |
| US5324825A | Terpyridine derivatives | Physics | 25 | Expired |
| US5294795A | Arrangement for counting liquid scintillation samples on multi-well filtration plates | Physics | 25 | Expired |
| US7205518B2 | Method and arrangement for focusing in an optical measurement | Physics | 19 | Expired |
| US5298753A | Arrangement for counting liquid scintillation samples on bottom-window multi-well sample plates | Physics | 18 | Expired |
| US5416329A | Apparatus for counting liquid scintillation samples | Physics | 18 | Expired |
| US5444167A | Variant luteinizing hormone encoding DNA | Chemistry; Metallurgy | 17 | Expired |
| US5252462A | Enzyme activity determinations method characterized by the using of substrates whose fluorescent properties differs those of the converted products | Emerging Cross-Sectional Technologies | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.