Thomas Walter
36Patents
10h-index
34Co-inventors
75Inventor score
Filing activity: Aug 30, 1976 → Aug 21, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6255477A | Particles having a magnetic core and outer glass layer for separating biological material | Emerging Cross-Sectional Technologies | 54 | Expired |
| US6720417B1 | Method and device for refining nucleic acids | Performing Operations; Transporting | 38 | Expired |
| US6669910B1 | System for providing biological materials | Emerging Cross-Sectional Technologies | 29 | Expired |
| US7491495B2 | Adsorption of nucleic acids to a solid phase | Chemistry; Metallurgy | 25 | Active |
| US4851835A | Capacitive rotary transmitter for controlling and positioning displaced objects | Electricity | 20 | Expired |
| US4515945A | N-Alkyl-4-(4-pyridinyl)isatoic anhydrides | Chemistry; Metallurgy | 19 | Expired |
| US6870047B2 | Magnetic pigment | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7371830B2 | Method for separating biological material from a fluid using magnetic particles | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5910246A | Device for isolating nucleic acids | Chemistry; Metallurgy | 17 | Expired |
| US7329491B2 | Methods for isolating nucleic acids | Chemistry; Metallurgy | 14 | Expired |
| US4401581A | Nitrogen-containing ashless dispersants and lubricating oil composition containing same | Chemistry; Metallurgy | 10 | Expired |
| US4948648A | Fire resistant laminar cushioning material | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5821436A | Method for the repeated transfer of liquids | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5906947A | Method for the repeated transfer of liquids | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6090936A | Device for isolating nucleic acids | Chemistry; Metallurgy | 5 | Expired |
| US8158349B2 | Method and device for purifying nucleic acids | Performing Operations; Transporting | 4 | Active |
| US4533735A | Process for preparing antibacterial compounds | Chemistry; Metallurgy | 4 | Expired |
| US4247490A | Process for the purification of dialkylphosphorochloridothioates | Chemistry; Metallurgy | 3 | Expired |
| US7537935B2 | System for providing biological materials | Emerging Cross-Sectional Technologies | 3 | Active |
| US4524203A | 4-(4-Pyridinyl)isatoic anhydride | Chemistry; Metallurgy | 3 | Expired |
| US7897378B2 | Method and device for purifying nucleic acids | Performing Operations; Transporting | 3 | Active |
| US4405792A | Substituted pyridines and their preparation | Chemistry; Metallurgy | 3 | Expired |
| US8927261B2 | Method and device for purifying nucleic acids | Performing Operations; Transporting | 2 | Active |
| US4137260A | Process for precipitation of carboxyalkoxy succinate tetrahydrate salt | Chemistry; Metallurgy | 2 | Expired |
| US4473706A | Preparation of cyclic-keto-acids | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.