McDonnell Douglas Corporation
1,180Patents
0Active
1,180Granted
48Portfolio score
Filing activity: Aug 20, 1959 → Sep 16, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4737794A | Method and apparatus for determining remote object orientation and position | Physics | 401 | Expired |
| US4742356A | Method and apparatus for determining remote object orientation and position | Physics | 348 | Expired |
| US4613866A | Three dimensional digitizer with electromagnetic coupling | Physics | 333 | Expired |
| US5646633A | Microstrip antenna having a plurality of broken loops | Electricity | 294 | Expired |
| US4942013A | Vacuum resin impregnation process | Performing Operations; Transporting | 227 | Expired |
| US5003318A | Dual frequency microstrip patch antenna with capacitively coupled feed pins | Electricity | 219 | Expired |
| US5850482A | Error resilient method and apparatus for entropy coding | Electricity | 209 | Expired |
| US4688037A | Electromagnetic communications and switching system | Mechanical Engineering; Lighting; Heating | 204 | Expired |
| USD254687S | Biochemical card for use with an automated microbial identification machine | General | 181 | Expired |
| US5694408A | Fiber optic laser system and associated lasing method | Electricity | 174 | Expired |
| US4018652A | Process and apparatus for ascertaining the concentration of microorganism in a water specimen | Emerging Cross-Sectional Technologies | 162 | Expired |
| US6799081B1 | Fiber placement and fiber steering systems and corresponding software for composite structures | Physics | 158 | Expired |
| US4398248A | Adaptive WSI/MNOS solid state memory system | Physics | 147 | Expired |
| US4118280A | Automated microbial analyzer | Emerging Cross-Sectional Technologies | 139 | Expired |
| US5899085A | Integrated air conditioning and power unit | Emerging Cross-Sectional Technologies | 138 | Expired |
| US5967461A | High efficiency environmental control systems and methods | Emerging Cross-Sectional Technologies | 135 | Expired |
| US4086378A | Stiffened composite structural member and method of fabrication | Emerging Cross-Sectional Technologies | 131 | Expired |
| US6200309A | Photodynamic therapy system and method using a phased array raman laser amplifier | Electricity | 130 | Expired |
| US3971211A | Thermodynamic cycles with supercritical CO.sub.2 cycle topping | Mechanical Engineering; Lighting; Heating | 129 | Expired |
| US3948346A | Multi-layered acoustic liner | Emerging Cross-Sectional Technologies | 127 | Expired |
| US5890134A | Scheduling optimizer | Physics | 120 | Expired |
| US5477332A | Digital image system and method for determining surface reflective and refractive characteristics of objects | Physics | 114 | Expired |
| US4281447A | Detachable tool interface system for a robot | Emerging Cross-Sectional Technologies | 113 | Expired |
| US4371870A | Fail transparent LCD display with backup | Emerging Cross-Sectional Technologies | 113 | Expired |
| US6098260A | Rivet fastening system for radial fuselage joints | Emerging Cross-Sectional Technologies | 111 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.