| Patent Number |
Title Of Patent |
Date Issued |
| 4894628 |
Transmission delay line and method of manufacture |
Jan. 16, 1990 |
| 4894627 |
Directional waveguide-finline coupler |
Jan. 16, 1990 |
| 4894626 |
Variable length shift register |
Jan. 16, 1990 |
| 4894625 |
Rectangular waveguide to circular wrapped rectangular waveguide transition |
Jan. 16, 1990 |
| 4894624 |
Combined amplitude modulator and frequency converter |
Jan. 16, 1990 |
| 4894623 |
Compact tunable RF generator using a current carrying diffraction grating |
Jan. 16, 1990 |
| 4894622 |
Integrated current-mirror arrangement comprising vertical transistors |
Jan. 16, 1990 |
| 4894621 |
Circuit for five level waveform synthesis |
Jan. 16, 1990 |
| 4894620 |
Switched-capacitor circuit with large time constant |
Jan. 16, 1990 |
| 4894619 |
Impulse induced eddy current type detector using plural measuring sequences in detecting metal o... |
Jan. 16, 1990 |
| 4894618 |
Metal detector using cross-correlation between components of received signals |
Jan. 16, 1990 |
| 4894617 |
Device for locating steel rods buried in high-density reinforced concrete |
Jan. 16, 1990 |
| 4894616 |
Selective excitation method for nmr imaging |
Jan. 16, 1990 |
| 4894615 |
Stress-relieved amorphous metal ribbon magnetometer having viscous fluid interface |
Jan. 16, 1990 |
| 4894614 |
Apparatus for measuring the center-to-center distance between point wires of print solenoids |
Jan. 16, 1990 |
| 4894613 |
Inductive speed sensor having switching hysteresis for increasing the magnitude of a phase shift |
Jan. 16, 1990 |
| 4894612 |
Soft probe for providing high speed on-wafer connections to a circuit |
Jan. 16, 1990 |
| 4894611 |
System for measuring characteristics of electron emitting sources |
Jan. 16, 1990 |
| 4894610 |
Current-transformer arrangement for an electrostatic meter |
Jan. 16, 1990 |
| 4894609 |
Electrical measuring device |
Jan. 16, 1990 |
| 4894608 |
Electric current sensor using the faraday effect |
Jan. 16, 1990 |
| 4894607 |
Surface potential detecting apparatus |
Jan. 16, 1990 |
| 4894606 |
System for measuring misregistration of printed circuit board layers |
Jan. 16, 1990 |
| 4894605 |
Method and on-chip apparatus for continuity testing |
Jan. 16, 1990 |
| 4894604 |
Fluid capacitance sensing means and method |
Jan. 16, 1990 |
| 4894603 |
Method and apparatus for analysis of gas by means of absorption frequency regulation |
Jan. 16, 1990 |
| 4894602 |
Overvoltage protection system for marine ignition and regulator circuitry |
Jan. 16, 1990 |
| 4894601 |
Testing and battery exercising method and control for an emergency lighting unit |
Jan. 16, 1990 |
| 4894600 |
Adaptive work station |
Jan. 16, 1990 |
| 4894599 |
deadbeat control of disk drive actuator |
Jan. 16, 1990 |
| 4894598 |
Digital robot control having an improved pulse width modulator |
Jan. 16, 1990 |
| 4894597 |
Deburring robot |
Jan. 16, 1990 |
| 4894596 |
Velocity control apparatus |
Jan. 16, 1990 |
| 4894595 |
Industrial robot |
Jan. 16, 1990 |
| 4894594 |
Servo system speed control apparatus |
Jan. 16, 1990 |
| 4894593 |
Method of correcting electron beam misconvergence in a color display tube and a color display tu... |
Jan. 16, 1990 |
| 4894592 |
Electrodeless lamp energized by microwave energy |
Jan. 16, 1990 |
| 4894591 |
Inverted Excitation coil for HID lamps |
Jan. 16, 1990 |
| 4894590 |
Spiral single starting electrode for HID lamps |
Jan. 16, 1990 |
| 4894589 |
Starting means, with piezoelectrically-located capacitive starting electrodes, for HID lamps |
Jan. 16, 1990 |
| 4894588 |
High efficiency flasher |
Jan. 16, 1990 |
| 4894587 |
High frequency gas discharge lamp dimming ballast |
Jan. 16, 1990 |
| 4894586 |
Crossed-field amplifier bias circuit and method for improved starting |
Jan. 16, 1990 |
| 4894585 |
Combination lamp |
Jan. 16, 1990 |
| 4894584 |
Electric lamp provided with a getter including palladium |
Jan. 16, 1990 |
| 4894583 |
Display devices with yttrium orthosilicate phosphors |
Jan. 16, 1990 |
| 4894582 |
Method and apparatus for enhancing spark channel recovery by spark-generated unsteady flows |
Jan. 16, 1990 |
| 4894581 |
Table and cabinet combination for fly tying |
Jan. 16, 1990 |
| 4894580 |
Chip-type resonator and method of manufacturing the same |
Jan. 16, 1990 |
| 4894579 |
Apparatus for effecting fine movement by impact force produced by piezoelectric or electrostrict... |
Jan. 16, 1990 |
