Metrohm AG
13Patents
6Active
13Granted
40Portfolio score
Filing activity: Feb 12, 1986 → Jul 8, 2020 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5686829A | Voltammetric method and apparatus | Physics | 450 | Expired |
| US5062547A | Volume measurement and dosage device | Physics | 21 | Expired |
| US6153101A | Device for ion-exchange chromatography and method of cyclically regenerating a plurality of suppressors of such a device | Physics | 10 | Expired |
| US7767146B2 | Sample changer with balance | Physics | 5 | Active |
| US5861097A | Method and device for preparing samples | Physics | 5 | Expired |
| US6182517A | Burette tip | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4715237A | Process and apparatus for quantitative and/or qualitative analysis of liquids | Physics | 4 | Expired |
| US7753238B2 | Volume measurement and/or metering device and method for operating a volume measurement and/or metering device | Physics | 3 | Active |
| US10737855B2 | Closure for a container | Performing Operations; Transporting | 2 | Active |
| US7019040B2 | Process for the preparation of porous polymer particles based on acrylate and/or methacrylate | Chemistry; Metallurgy | 2 | Expired |
| US12325566B2 | Closure for a container | Performing Operations; Transporting | 0 | Active |
| US11712660B2 | Dialysis cell for sample preparation for a chemical analysis method | Physics | 0 | Active |
| US12291618B2 | Method for producing a hydrophilic surface on PS/DVB copolymer particles | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.