InterNorth, Inc.
34Patents
0Active
34Granted
38Portfolio score
Filing activity: Jan 8, 1979 → Apr 23, 1986
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4650138A | Cascaded micro-groove aerodynamic drag reducer | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4316811A | Dust suppressant | Chemistry; Metallurgy | 33 | Expired |
| US4535620A | Method for automatically measuring the amount of water in a natural gas pipeline with the aid of a computer controlled gas chromatograph | Physics | 28 | Expired |
| US4567026A | Method for extraction of iron aluminum and titanium from coal ash | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4709750A | Phase change heat exchanger | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4331445A | Reduction of spontaneous combustion of coal | Chemistry; Metallurgy | 20 | Expired |
| US4345613A | Pressure-operated portable siphon apparatus for removing concentrations of liquid from a gas pipeline | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4612912A | Double-layered thermal energy storage module | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4548802A | Continuous flow separation with moving boundary sorption | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4548803A | Continuous flow separation with moving boundary sorption | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4341649A | Energy storage medium and method | Chemistry; Metallurgy | 10 | Expired |
| US4339882A | Organic solid substrate dewatering process utilizing primary and secondary solvents | Performing Operations; Transporting | 10 | Expired |
| US4397100A | Organic solid substrate dewatering process based on plug flow contact by an extractive fluid | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4574861A | Thermal shade | Fixed Constructions | 9 | Expired |
| US4599225A | Continuous flow separation with moving boundary sorption | Physics | 9 | Expired |
| US4442697A | Pre-stressed impact testing device | Physics | 7 | Expired |
| US4391735A | Cleaning and regenerating ethylene oxide catalysts | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4738303A | Zone storage heat exchanger | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4446851A | Plastic radiant exchanger | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4322219A | Moisture reduction | Chemistry; Metallurgy | 4 | Expired |
| US4582950A | Removal of acetylene and carbon monoxide from methane and ethane | Chemistry; Metallurgy | 4 | Expired |
| US4464847A | Machine for dewatering aggregate solid substrates by miscible liquid displacement | Performing Operations; Transporting | 4 | Expired |
| US4284107A | Fracture arrestor for a pipeline | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4686031A | Beneficiation of gallium in fly ash | Chemistry; Metallurgy | 3 | Expired |
| US4491638A | Controlled addition of promoters to ethylene oxide catalysts (11) | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.