Douglas Carl Hofer
52Patents
8h-index
88Co-inventors
81Inventor score
Filing activity: Jun 30, 1992 → Jun 17, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5524341A | Method of making a row of mix-tuned turbomachine blades | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6814543B2 | Method and apparatus for bucket natural frequency tuning | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5257906A | Exhaust system for a turbomachine | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US6896475B2 | Fluidic actuation for improved diffuser performance | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8813494B2 | Method and system for a turbocharged engine | Emerging Cross-Sectional Technologies | 23 | Active |
| US10077660B2 | Turbine engine assembly and method of manufacturing | Mechanical Engineering; Lighting; Heating | 16 | Active |
| US7097428B2 | Integral cover bucket design | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6783321B2 | Diffusing coupling cover for axially joined turbines | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6821083B2 | Support structure for stream turbine bearing housing | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6779972B2 | Flowpath sealing and streamlining configuration for a turbine | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US9022730B2 | Supersonic compressor startup support system | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US7059821B2 | Method and apparatus to facilitate sealing within turbines | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US9644502B2 | Regenerative thermodynamic power generation cycle systems, and methods for operating thereof | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US9097258B2 | Supersonic compressor comprising radial flow path | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US10982713B2 | Closed cycle heat engine | Emerging Cross-Sectional Technologies | 5 | Active |
| US6375417B1 | Moisture removal pocket for improved moisture removal efficiency | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US8770929B2 | Supersonic compressor rotor and method of compressing a fluid | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8137054B2 | Supersonic compressor | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8864454B2 | System and method of assembling a supersonic compressor system including a supersonic compressor rotor and a compressor assembly | Emerging Cross-Sectional Technologies | 3 | Active |
| US10246345B2 | Water desalination system and method for fast cooling saline water using turbines | Emerging Cross-Sectional Technologies | 3 | Active |
| US10072889B2 | Liquefaction system using a turboexpander | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8070555B2 | Visual feedback for airfoil polishing | Physics | 2 | Active |
| US8668446B2 | Supersonic compressor rotor and method of assembling same | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10746084B2 | Liquid driven thermal module and thermal management system | Electricity | 2 | Active |
| US10208609B2 | Turbine and methods of assembling the same | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.