NORTHROP GRUMMAN CORPORATION
1,962Patents
160Active
1,962Granted
49Portfolio score
Filing activity: Aug 18, 1972 → Jul 19, 2011 · 156 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5565858A | Electronic inventory system for stacked containers | Physics | 471 | Expired |
| US7701439B2 | Gesture recognition simulation system and method | Physics | 443 | Active |
| US5975081A | Self-contained transportable life support system | Human Necessities | 368 | Expired |
| US5853601A | Top-via etch technique for forming dielectric membranes | Electricity | 311 | Expired |
| US5718234A | Physiological data communication system | Emerging Cross-Sectional Technologies | 296 | Expired |
| US7043213B2 | Multi-mode amplifier system | Electricity | 290 | Expired |
| US5762064A | Medical magnetic positioning system and method for determining the position of a magnetic probe | Human Necessities | 289 | Expired |
| US6072994A | Digitally programmable multifunction radio system architecture | Electricity | 272 | Expired |
| US7068998B2 | Methodology for the detection of intrusion into radio frequency (RF) based networks including tactical data links and the tactical internet | Electricity | 251 | Expired |
| US6606066B1 | Tri-mode seeker | Physics | 246 | Expired |
| US5859878A | Common receive module for a programmable digital radio | Electricity | 240 | Expired |
| US6865690B2 | Voltage conditioner with embedded battery backup | Electricity | 237 | Expired |
| US5801643A | Remote utility meter reading system | Emerging Cross-Sectional Technologies | 226 | Expired |
| US7570137B2 | Monolithic microwave integrated circuit (MMIC) waveguide resonators having a tunable ferroelectric layer | Electricity | 222 | Active |
| US5341142A | Target acquisition and tracking system | Mechanical Engineering; Lighting; Heating | 221 | Expired |
| US5901037A | Closed loop liquid cooling for semiconductor RF amplifier modules | Electricity | 213 | Expired |
| US5798733A | Interactive position guidance apparatus and method for guiding a user to reach a predetermined target position | Physics | 211 | Expired |
| US7183991B2 | Multiple flared antenna horn with enhanced aperture efficiency | Electricity | 201 | Expired |
| US5998240A | Method of extracting heat from a semiconductor body and forming microchannels therein | Electricity | 199 | Expired |
| US5570324A | Underwater sound localization system | Physics | 197 | Expired |
| US7479841B2 | Transmission line to waveguide interconnect and method of forming same including a heat spreader | Electricity | 196 | Expired |
| US5659171A | Micro-miniature diaphragm pump for the low pressure pumping of gases | Electricity | 187 | Expired |
| US5845391A | Method of making antenna array panel structure | Emerging Cross-Sectional Technologies | 180 | Expired |
| US5929614A | High efficiency DC step-up voltage converter | Electricity | 179 | Expired |
| US5392650A | Micromachined accelerometer gyroscope | Physics | 179 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.