Sakai Chemical Industry Co., Ltd.
158Patents
78Active
158Granted
50Portfolio score
Filing activity: Jun 12, 1973 → Sep 21, 2021 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5380692A | Catalyst for catalytic reduction of nitrogen oxide | Emerging Cross-Sectional Technologies | 94 | Expired |
| US6045765A | Catalyst and method for catalytic reduction of nitrogen oxides | Performing Operations; Transporting | 67 | Expired |
| US8956995B2 | Catalyst and method for thermal decomposition of organic substance and method for producing such catalyst | Emerging Cross-Sectional Technologies | 64 | Active |
| US4643984A | Process for producing a composition which includes perovskite compounds | Chemistry; Metallurgy | 51 | Expired |
| US4113660A | Production of shaped catalysts or carriers comprising titanium oxides | Performing Operations; Transporting | 51 | Expired |
| US4520124A | Method for producing a catalytic structure for the reduction of nitrogen oxides | Performing Operations; Transporting | 48 | Expired |
| US4280926A | Method for producing a catalyst and a carrier therefor | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5232882A | Ozone decomposing reactor regeneration | Chemistry; Metallurgy | 40 | Expired |
| US6197273A | Method for producing fine spherical particles of carbonate or hydroxide of nickel, cobalt or copper | Chemistry; Metallurgy | 37 | Expired |
| US5733837A | Catalyst for catalytic reduction of nitrogen oxides | Performing Operations; Transporting | 37 | Expired |
| US4608361A | Catalyst carriers and process for preparation of the same | Performing Operations; Transporting | 36 | Expired |
| US5080882A | Methods of ozone decomposition and catalyst structures used therein | Performing Operations; Transporting | 36 | Expired |
| US4891348A | Catalyst for removing nitrogen oxides in exhaust gases | Performing Operations; Transporting | 28 | Expired |
| US5232886A | Catalysts and methods for ozone decomposition | Performing Operations; Transporting | 28 | Expired |
| US6306787A | Nickel hydroxide particles and production and use thereof | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5585059A | Water soluble algin fibers and production thereof | Human Necessities | 28 | Expired |
| US5212140A | Catalyst for decomposing ozone | Performing Operations; Transporting | 27 | Expired |
| US4414196A | Method of producing single crystalline, acicular .alpha.-ferric oxide | Chemistry; Metallurgy | 26 | Expired |
| US5057478A | Method of producing a composite material comprising a perovskite complex compound having an .alpha.-olefin polymer deposited thereon | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4294806A | Method for preventing the wear of a monolithic catalyst by dusts | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5214014A | Deodorizing catalyst | Performing Operations; Transporting | 23 | Expired |
| US4416800A | Method for producing a catalyst and a carrier therefor including heat-resistant fibers | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5227145A | Process for removing nitrogen oxides from exhaust gases | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5160586A | Ozone decomposing reactor | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4352899A | Coating composition for metal-substrate | Chemistry; Metallurgy | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.