The Halcon SD Group, Inc.
82Patents
0Active
82Granted
36Portfolio score
Filing activity: Oct 6, 1977 → Jul 8, 1986
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4497967A | Process for the preparation of ethanol from methanol, carbon monoxide _and hydrogen | Emerging Cross-Sectional Technologies | 170 | Expired |
| US4334890A | Process for gasoline blending stocks | Chemistry; Metallurgy | 34 | Expired |
| US4400559A | Process for preparing ethylene glycol | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4508927A | Preparation of glycols from ethylene oxide | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4524581A | Method for the production of variable amounts of power from syngas | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4532365A | Conversion of alkanes to unsaturated aldehydes | Performing Operations; Transporting | 26 | Expired |
| US4413147A | Conversion of isobutane to methacrolein | Performing Operations; Transporting | 25 | Expired |
| US4483803A | Preparation of carboxylic acid anhydrides | Performing Operations; Transporting | 22 | Expired |
| US4661337A | Preparation of hydrogen peroxide | Chemistry; Metallurgy | 22 | Expired |
| US4609502A | Process for preparing unsaturated nitriles from alkanes | Chemistry; Metallurgy | 21 | Expired |
| US4342667A | Process for preparing a silver catalyst | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4535188A | Conversion of isobutane to methacrolein | Performing Operations; Transporting | 20 | Expired |
| US4486959A | Process for the thermal dewatering of young coals | Chemistry; Metallurgy | 20 | Expired |
| US4559183A | Preparation of carboxylic acid anhydrides | Chemistry; Metallurgy | 20 | Expired |
| US4555501A | Process for preparing silver catalysts | Chemistry; Metallurgy | 19 | Expired |
| US4374759A | Catalysts and process for unsaturated aldehydes | Performing Operations; Transporting | 18 | Expired |
| US4321414A | Catalytic hydrogenation of glycolaldehyde to produce ethylene glycol | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4437938A | Process for recovering ethylene oxide from aqueous solutions | Performing Operations; Transporting | 17 | Expired |
| US4547588A | Process for producing methacrylic acid | Performing Operations; Transporting | 17 | Expired |
| US4479013A | Catalyst and process for unsaturated aldehydes | Performing Operations; Transporting | 17 | Expired |
| US4437939A | Process for separating ethylene oxide from aqueous solutions | Chemistry; Metallurgy | 15 | Expired |
| US4341741A | Recovery of rhodium from carbonylation residues | Emerging Cross-Sectional Technologies | 15 | Expired |
| USRE32082E | Conversion of isobutane to methacrolein | General | 15 | Expired |
| US4340570A | Recovery of rhodium from carbonylation residues | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4434240A | Recovery of noble metal values from carbonylation residues | Emerging Cross-Sectional Technologies | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.