UNION CARBIDE CORPORATION
2,940Patents
19Active
2,940Granted
48Portfolio score
Filing activity: Jun 5, 1969 → Mar 17, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4440871A | Crystalline silicoaluminophosphates | Chemistry; Metallurgy | 922 | Expired |
| US4588790A | Method for fluidized bed polymerization | Performing Operations; Transporting | 836 | Expired |
| US4310440A | Crystalline metallophosphate compositions | Emerging Cross-Sectional Technologies | 554 | Expired |
| US4543399A | Fluidized bed reaction systems | Emerging Cross-Sectional Technologies | 511 | Expired |
| US4351069A | Prosthetic devices having sintered thermoplastic coatings with a porosity gradient | Human Necessities | 335 | Expired |
| US4164794A | Prosthetic devices having coatings of selected porous bioengineering thermoplastics | Human Necessities | 326 | Expired |
| US4302566A | Preparation of ethylene copolymers in fluid bed reactor | Chemistry; Metallurgy | 274 | Expired |
| US4061724A | Crystalline silica | Emerging Cross-Sectional Technologies | 263 | Expired |
| US4567029A | Crystalline metal aluminophosphates | Chemistry; Metallurgy | 260 | Expired |
| US4302565A | Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization | Emerging Cross-Sectional Technologies | 253 | Expired |
| US3993063A | Protective shielding assembly for use in loading a hypodermic syringe with radioactive material | Human Necessities | 224 | Expired |
| US4499327A | Production of light olefins | Emerging Cross-Sectional Technologies | 217 | Expired |
| US3953172A | Method and apparatus for assaying liquid materials | Performing Operations; Transporting | 213 | Expired |
| US4500651A | Titanium-containing molecular sieves | Chemistry; Metallurgy | 199 | Expired |
| US4187846A | Sterile connectors | Emerging Cross-Sectional Technologies | 185 | Expired |
| US4421939A | Production of ethanol from acetic acid | Chemistry; Metallurgy | 178 | Expired |
| US4474896A | Adsorbent compositions | Emerging Cross-Sectional Technologies | 171 | Expired |
| US4503023A | Silicon substituted zeolite compositions and process for preparing same | Emerging Cross-Sectional Technologies | 171 | Expired |
| US4011382A | Preparation of low and medium density ethylene polymer in fluid bed reactor | Chemistry; Metallurgy | 169 | Expired |
| US4108837A | Polyarylene polyethers | Chemistry; Metallurgy | 164 | Expired |
| US4101631A | Selective adsorption of mercury from gas streams | Performing Operations; Transporting | 159 | Expired |
| US4895713A | Intercalation of graphite | Chemistry; Metallurgy | 153 | Expired |
| US4175175A | Polyarylene polyethers | Chemistry; Metallurgy | 152 | Expired |
| US4148830A | Hydroformylation of olefins | Chemistry; Metallurgy | 146 | Expired |
| US4138163A | Bulk material containers | Performing Operations; Transporting | 146 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.