Hoechst GmbH
🏢 View company profile →6,733Patents
0Active
6,733Granted
46Portfolio score
Filing activity: Apr 21, 1969 → Sep 10, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4096853A | Device for the introduction of contrast medium into an anus praeter | Human Necessities | 1,180 | Expired |
| US4542199A | Process for the preparation of polyolefins | Emerging Cross-Sectional Technologies | 392 | Expired |
| US5205287A | Ultrasonic contrast agents, processes for their preparation and the use thereof as diagnostic and therapeutic agents | Human Necessities | 343 | Expired |
| US5145819A | 2-substituted disindenylmetallocenes, process for their preparation, and their use as catalysts in the polymerization of olefins | Emerging Cross-Sectional Technologies | 289 | Expired |
| US5278264A | Process for the preparation of an olefin polymer | Emerging Cross-Sectional Technologies | 241 | Expired |
| US5304614A | Process for the preparation of an olefin polymer using metallocenes having specifically substituted indenyl ligands | Emerging Cross-Sectional Technologies | 215 | Expired |
| US4503115A | Plate-shaped molded article and process for its preparation and use | Emerging Cross-Sectional Technologies | 207 | Expired |
| US5137928A | Ultrasonic contrast agents, processes for their preparation and the use thereof as diagnostic and therapeutic agents | Human Necessities | 205 | Expired |
| US5243001A | Process for the preparation of a high molecular weight olefin polymer | Emerging Cross-Sectional Technologies | 204 | Expired |
| US4664839A | Use of crystalline layered sodium silicates for softening water and a process for softening water | Chemistry; Metallurgy | 191 | Expired |
| US5087677A | Process for the preparation of cycloolefin polymers | Emerging Cross-Sectional Technologies | 183 | Expired |
| US5840217A | Spiro compounds and their use as electroluminescence materials | Electricity | 178 | Expired |
| US5276268A | Phosphinothricin-resistance gene, and its use | Chemistry; Metallurgy | 171 | Expired |
| US4278793A | Cephem derivative | Chemistry; Metallurgy | 162 | Expired |
| US4769510A | Process for the preparation of polyolefins | Emerging Cross-Sectional Technologies | 157 | Expired |
| US5830880A | Gene therapy of tumors with an endothelial cell-specific, cell cycle-dependent active compound | Chemistry; Metallurgy | 146 | Expired |
| US4820439A | Washing and cleaning agent containing surfactants, builder, and crystalline layered sodium silicate | Chemistry; Metallurgy | 145 | Expired |
| US4631221A | Sheet-like sandwich molding | Emerging Cross-Sectional Technologies | 141 | Expired |
| US4941874A | Device for the administration of implants | Human Necessities | 139 | Expired |
| US5621131A | Conjugated polymers having spiro centers and their use as electroluminescence materials | Electricity | 138 | Expired |
| US5879903A | Phosphinothricin-resistance gene, and its use | Chemistry; Metallurgy | 138 | Expired |
| US5329033A | Process for the preparation of an olefin polymer | Emerging Cross-Sectional Technologies | 137 | Expired |
| US4935246A | Process for the coating of granules | Emerging Cross-Sectional Technologies | 134 | Expired |
| US4392711A | Process and apparatus for rendering visible charge images | Physics | 133 | Expired |
| US5470843A | Carbohydrate-containing polymers, their preparation and use | Chemistry; Metallurgy | 130 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.