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Expired patents of:
Hughes Aircraft Company

Displaying 1 to 50 of 196 patents. (Retrieval took 3.104 seconds.)

 Patent TitleExpired:
1.Self-aligned contact diffusion barrier method2007-02-14
2.Method of obtaining a narrow field of view scan2007-02-07
3.Determining liquid fill fraction on a spacecraft2007-01-24
4.Bandpass frequency selective surface2007-01-24
5.Flash EEPROM cell having gap between floating gate and drain for high hot electron injection efficiency for programming2007-01-03
6.Bonding of integrated circuit chip to carrier using gold/tin eutectic alloy and refractory metal nitride barrier layer to block migration of tin through via holes2007-01-03
7.Image restoration systems and methods utilizing input signals with modified DC signal content2006-12-06
8.Dual hardware channels and hardware context switching in a graphics rendering processor2006-12-06
9.Retention and release mechanism for fiber optic alignment sleeve retainer2006-11-22
10.Wedge bump bonding apparatus and method2006-11-15
11.Compact optical system for a single light valve full-color projector2006-11-08
12.Focusable virtual image display2006-11-08
13.Fabrication of reliable ceramic preforms for metal matrix composite production2006-11-01
14.Apparatus for measuring the conductivity of a fluid2006-11-01
15.Torque oscillation compensation using torque transducer feedback2006-10-25
16.Low-noise cryogenic MOSFET2006-10-18
17.Electrical connections with shaped contacts2006-10-11
18.Phase shift device using voltage-controllable dielectrics2006-10-11
19.Apparatus for providing consistent, non-jamming registration of semiconductor wafers2006-10-04
20.Field-effect transistor with structure for suppressing hot-electron effects, and method of fabricating the transistor2006-10-04
21.Maskless process for forming refractory metal layer in via holes of GaAs chips2006-09-27
22.Method of cancelling offset errors in phase detectors2006-09-27
23.Least mean square (LMS) normalizer for active sonar2006-09-20
24.Large diameter low RPM propeller for torpedoes2006-09-06
25.Doppler tracking method for object imaging from radar returns2006-08-30
26.Surface treatment method for fatigue-resistant solder2006-08-23
27.Switched capacitor amplifier circuit operating without serially coupled amplifiers2006-08-23
28.Rigid-flex circuits with raised features as IC test probes2006-08-16
29.Printed circuit board mounting cage2006-08-16
30.Methods and apparatus for confinement of a plasma etch region for precision shaping of surfaces of substances and films2006-08-09
31.Chemically sensitive fiber optic cable2006-08-09
32.Low power integrated circuit white noise source2006-07-19
33.Acoustic navigation and diving information system and method2006-07-19
34.Multimodule terminating plane assembly2006-06-28
35.Method and system for monitoring quality of phosphate coating2006-06-28
36.Glass sealing of electrochemical storage cell structures2006-06-14
37.Bench flotation sensor2006-06-14
38.Biocular display system using binary optics2006-06-09
39.Pressure transducer using permanent magnet and opposing variable magnetic field2006-06-07
40.Wideband arrayable planar radiator2006-06-07
41.Nonvolatile serially programmable devices2006-06-07
42.Electrochemical synapses for artificial neural networks2006-05-24
43.Spray paint monitoring and control using doppler radar techniques2006-05-24
44.Signal processing incorporating signal, tracking, estimation, and removal processes using a maximum a posteriori algorithm, and sequential signal detection2006-05-24
45.High speed, low distortion amplifier design and method2006-05-17
46.Track filter bias estimation2006-05-17
47.Tool joint sensor2006-05-12
48.Optical fiber apparatus and method for measuring geological strains2006-05-12
49.Polarization ECCM technique for radar systems2006-05-10
50.Stacked chip assembly and manufacturing method therefor2006-05-10

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