Akzo N.V.
781Patents
0Active
781Granted
45Portfolio score
Filing activity: Sep 8, 1972 → Aug 19, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5234809A | Process for isolating nucleic acid | Chemistry; Metallurgy | 607 | Expired |
| US5229275A | In-vitro method for producing antigen-specific human monoclonal antibodies | Chemistry; Metallurgy | 366 | Expired |
| US5299253A | Alignment system to overlay abdominal computer aided tomography and magnetic resonance anatomy with single photon emission tomography | Human Necessities | 310 | Expired |
| US4212738A | Artificial kidney | Human Necessities | 290 | Expired |
| US4968733A | Process for producing microporous powders and membranes | Emerging Cross-Sectional Technologies | 179 | Expired |
| US4818517A | Pharmaceutical preparation for obtaining a highly viscose hydrogel or suspension | Human Necessities | 148 | Expired |
| US5484596A | Active specific immunotherapy | Emerging Cross-Sectional Technologies | 142 | Expired |
| US4797468A | Preparation of polylactic acid and copolymers of lactic acids | Chemistry; Metallurgy | 134 | Expired |
| US5162783A | Infrared touch screen device for a video monitor | Physics | 127 | Expired |
| US5045057A | Apparatus and method for withdrawing an optimum amount of blood per unit of time from a donor | Human Necessities | 123 | Expired |
| US4836084A | Armour plate composite with ceramic impact layer | Emerging Cross-Sectional Technologies | 123 | Expired |
| US5294369A | Ligand gold bonding | Emerging Cross-Sectional Technologies | 122 | Expired |
| US5397312A | Applicator for introducing a cream-type substance into a woman's vagina | Human Necessities | 110 | Expired |
| US5094955A | Device and method for detecting microorganisms | Emerging Cross-Sectional Technologies | 103 | Expired |
| US4359359A | Production of polyurethane embedding materials and use thereof | Emerging Cross-Sectional Technologies | 100 | Expired |
| US5066401A | Flat or capillary membrane based on a homogeneous mixture of polyvinylidene fluoride and a second polymer which can be rendered hydrophilic by chemical reaction | Performing Operations; Transporting | 100 | Expired |
| US4493870A | Flexible layered product | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4744240A | Method for determining the bubble point or the largest pore of membranes or of filter materials | Physics | 99 | Expired |
| US4976859A | Integral asymmetric polyether-sulfone membrane, process for its production, and use for ultrafiltration and microfiltration | Chemistry; Metallurgy | 98 | Expired |
| US4686044A | Polycarbonate-polyether-copolymer membrane | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5344036A | Container system | Performing Operations; Transporting | 83 | Expired |
| US4415631A | Porous inorganic support material coated with an organic stationary phase, for use in chromatography, and process for its preparation | Emerging Cross-Sectional Technologies | 82 | Expired |
| US5354537A | Piercing and sampling probe | Human Necessities | 82 | Expired |
| US5017535A | Process for the preparation of a presulfided and sulfided catalyst | Chemistry; Metallurgy | 81 | Expired |
| US5164796A | Apparatus and method for detection of microorganisms | Physics | 80 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.