51
Michael S Berlin: Delivery system and method of use for the eye. William A Birdwell, September 24, 2013: US08540659 (15 worldwide citation)

A method and delivery system are disclosed for creating an aqueous flow pathway in the trabecular meshwork, juxtacanalicular trabecular meshwork and Schlemm's canal of an eye for reducing elevated intraocular pressure. Pulsed laser radiation is delivered from the distal end of a fiber-optic probe su ...


52
Gary L McAlpine: Interleaved memory addressing system and method using a parity signal. Aptec Computer Systems, William A Birdwell, January 24, 1989: US04800535 (15 worldwide citation)

A high performance interleaved memory addressing system and method. A plurality of banks of random access memory devices are provided. The appropriate bank for a given memory address is selected based upon the parity among a preselected set of address bits including the least significant bit. A pari ...


53
Ronald L Carr: Joint assembly employing multi-ring gasket. KC Multi Ring Products, William A Birdwell Associates, May 12, 1998: US05749607 (14 worldwide citation)

A multi-ring gasket (24) and flanged pipe joint assembly employing such gasket. The gasket (24) for sealing the joint between two flanged pipes of polyvinylchloride, chlorinated polyvinylchloride or fiberglass-reinforced plastic pipe is provided. The gasket (24) has an inner ring (26), an outer ring ...


54
Richard C Cabot: Method and circuit for compensation of a multiplying digital-to-analog converter. Audio Precision, William A Birdwell, December 23, 1986: US04631522 (14 worldwide citation)

A method and circuit for reducing the effect of variations in resistances within a multiplying digital-to-analog converter. A first resistor is connected at one end to the feedback resistor of the MDAC, the other end providing a compensated circuit input. A second resistor is connected from the MDAC ...


55
James Stanley Steele: Adjustable shirt collar device. William A Birdwell & Associates, December 2, 1997: US05692240 (14 worldwide citation)

A method and apparatus for adjusting a collar. A flexible fastener is attached to a first side of a neck-band, underneath an under collar and out of sight, and removably attached to a second side of the neck-band, also underneath the under collar and out of sight, for adjustably fastening the collar ...


56
Donald A Kenner: Environmental monitoring well housing and protection method. William A Birdwell, April 30, 1991: US05010957 (13 worldwide citation)

An environmental monitoring well housing and protection method. A housing is disposed over the end of an environmental monitoring well pipe and set in concrete along with the well pipe itself so that the space between the housing and the well pipe is filled with concrete below the end of the well pi ...


57
Ivan C Allen: Automatic sighting device for a projectile launcher. William A Birdwell & Associates, April 30, 1996: US05511317 (13 worldwide citation)

A sighting device for use with a projectile launcher having a sighting element that is adjustable in height and an adjustment mechanism for adjusting the sighting element's height to match substantially the height of a target as apparent at the sighting device in the line of sight to the target. The ...


58
Dana S Clarke: Tissue structure identification in advance of instrument. William A Birdwell, October 25, 2011: US08046057 (13 worldwide citation)

A method and apparatus for identifying tissue structures in advance of a mechanical medical instrument during a medical procedure. A mechanical tissue penetrating medical instrument (22) has a distal end for penetrating tissue in a penetrating direction. An optical wavefront analysis system (32-50) ...


59
Gary McAlpine: Data transfer system and method of operation thereof. Aptec Computer Systems, William A Birdwell, June 6, 1989: US04837785 (13 worldwide citation)

A data transfer system with improved data transfer efficiency is provided. The system consists of a data interchange bus having two data transfer signal paths, an address signal path, and a plurality of control signal paths. Data interchange adapters and memory interchange adapters are coupled to th ...


60
Stephen A Roth, Roar Berg Johansen: Low power, high accuracy magnetometer and magnetic field strength measurement method. II Morrow, William A Birdwell, February 25, 1992: US05091697 (13 worldwide citation)

A magnetometer and method for measuring magnetic field strength particularly adapted for use in an electronic flux gate compass. A core of magnetic material in the shape of a toroid is coupled to a drive coil and to two sense coils oriented along orthogonal axes. A current limited, current source co ...