Pat. No.	Title
1.	5,704,105 Method of manufacturing multilayer array ultrasonic transducers
2.	5,677,491 Sparse two-dimensional transducer array
3.	5,671,746 Elevation steerable ultrasound transducer array
4.	5,655,538 Ultrasonic phased array transducer with an ultralow impedance backfill and a method for making
5.	5,655,536 Diagnostic ultrasound imaging using two-dimensional transducer array probe
6.	5,654,101 Acoustic composite material for an ultrasonic phased array
7.	5,644,085 High density integrated ultrasonic phased array transducer and a method for making
8.	5,637,800 Ultrasonic transducer array and manufacturing method thereof
9.	5,617,865 Multi-dimensional ultrasonic array interconnect
10.	5,606,972 Ultrasonic doppler measurement of blood flow velocities by array transducers
11.	5,581,036 Bandwidth sampling technique for digital focusing in array imaging systems
12.	5,559,388 High density interconnect for an ultrasonic phased array and method for making
13.	5,552,004 Method of making an acoustic composite material for an ultrasonic phased array
14.	5,546,946 Ultrasonic diagnostic transducer array with elevation focus
15.	5,541,468 Monolithic transducer array case and method for its manufacture
16.	5,531,117 Closed loop maximum likelihood phase aberration correction in phased-array imaging systems
17.	5,517,995 2D array for phase aberration correction
18.	5,511,550 Ultrasonic transducer array with apodized elevation focus
19.	5,509,417 Method and apparatus for phased array coupling ultrasonic energy into an acoustic waveguide wire
20.	5,492,134 Ultrasonic diagnostic transducer array with elevation focus
21.	5,488,956 Ultrasonic transducer array with a reduced number of transducer elements
22.	5,487,306 Phase aberration correction in phased-array imaging systems
23.	5,478,009 Selective removal of a single solder ball from an array of solder balls
24.	5,457,863 Method of making a two dimensional ultrasonic transducer array
25.	5,440,936 Compact x-cross transducer array for a transit time flowmeter, particularly for use during in-vivo blood flow measurement
26.	5,426,678 Method for ultrasonic inspection of a closely packed array of fuel rods surrounded by a thin-walled metallic channel
27.	5,423,220 Ultrasonic transducer array and manufacturing method thereof
28.	5,406,163 Ultrasonic image sensing array with acoustical backing
29.	5,402,791 Piezoelectric single crystal, ultrasonic probe, and array-type ultrasonic probe
30.	5,388,461 Beamforming time delay correction for a multi-element array ultrasonic scanner using beamsum-channel correlation
31.	5,381,385 Electrical interconnect for multilayer transducer elements of a two-dimensional transducer array
32.	5,381,067 Electrical impedance normalization for an ultrasonic transducer array
33.	5,355,888 High resolution phased array echo imager
34.	5,337,289 Phased-array ultrasonic surface contour mapping system and method for solids hoppers and the like
35.	5,331,964 Ultrasonic phased array imaging system with high speed adaptive processing using selected elements
36.	5,329,930 Phased array sector scanner with multiplexed acoustic transducer elements
37.	5,329,496 Two-dimensional array ultrasonic transducers
38.	5,311,095 Ultrasonic transducer array
39.	5,305,755 Ultrasonic probe, having transducer array capable of turning around its aperture axis and having a convex lens comprising a viscous resin
40.	5,279,160 Array for non-destructive material testing of cylindrical workpieces by means of electrodynamic ultrasonic measurement
41.	5,278,757 Synthetic aperture ultrasonic imaging system using a minimum or reduced redundancy phased array
42.	5,251,645 Adaptive nulling hyperthermia array
43.	5,235,986 Variable origin-variable angle acoustic scanning method and apparatus for a curved linear array
44.	5,228,008 Holder for rotatable sensor array
45.	5,203,335 Phased array ultrasonic beam forming using oversampled A/D converters
46.	5,197,037 Method and apparatus for the simultaneous performance of the beam formation and scan conversion in a phased array system
47.	5,172,343 Aberration correction using beam data from a phased array ultrasonic scanner
48.	5,166,573 Ultrasonic contact transducer and array
49.	5,160,870 Ultrasonic image sensing array and method
50.	5,115,810 Ultrasonic transducer array

	Pat. No.	Title
51.	5,115,416 Active transducer assembly for a phased array depth sounder
52.	5,091,893 Ultrasonic array with a high density of electrical connections
53.	5,044,053 Method of manufacturing a curved array ultrasonic transducer assembly
54.	4,992,692 Annular array sensors
55.	4,937,797 Method and apparatus for controlling scan line direction in a linear array ultrasonic doppler scanning system
56.	4,890,268 Two-dimensional phased array of ultrasonic transducers
57.	4,852,577 High speed adaptive ultrasonic phased array imaging system
58.	4,829,491 Phased-array equipment
59.	4,809,184 Method and apparatus for fully digital beam formation in a phased array coherent imaging system
60.	4,766,554 Ultrasonic inspection system with linear transducer array
61.	4,762,002 Probe array for ultrasonic imaging
62.	4,759,372 Convex array ultrasonic probe
63.	4,734,963 Method of manufacturing a curvilinear array of ultrasonic transducers
64.	4,714,846 Apparatus for the examination of objects with ultra-sound, comprising an array of piezo-electric transducer elements
65.	4,686,408 Curvilinear array of ultrasonic transducers
66.	4,670,683 Electronically adjustable mechanical lens for ultrasonic linear array and phased array imaging
67.	4,664,122 Ultrasonic transducer array used in ultrasonic diagnosis apparatus
68.	4,631,710 Azimuth adaptive phased array sonar
69.	4,628,573 Process for producing array-type ultrasonic probe
70.	4,612,809 Curved-array ultrasonic probe using low-velocity fluid
71.	4,611,141 Lead structure for a piezoelectric array-type ultrasonic probe
72.	4,598,589 Method of CW doppler imaging using variably focused ultrasonic transducer array
73.	4,582,065 Ultrasonic step scanning utilizing unequally spaced curvilinear transducer array
74.	4,576,045 Wide aperture ultrasonic scanner employing convex transducer array
75.	4,576,034 Adjustable radius apparatus for calibrating ultrasonic transducer array
76.	4,571,087 Array sonicator apparatus for automated sample preparation
77.	4,569,231 Multiple frequency annular transducer array and system
78.	4,558,598 Ultrasonic linear array water nozzle and method
79.	4,550,607 Phased array acoustic imaging system
80.	4,550,606 Ultrasonic transducer array with controlled excitation pattern
81.	4,537,074 Annular array ultrasonic transducers
82.	4,532,615 Phased array for an ultrasonic transducer
83.	4,530,242 Movable ultrasonic transducer array
84.	4,528,854 Phased-array receiver
85.	4,523,468 Phased array inspection of cylindrical objects
86.	4,497,210 Phased array ultrasonic testing apparatus and testing method therefor
87.	4,475,553 Ultrasonic needle housing probe with continuous locator array
88.	4,471,785 Ultrasonic imaging system with correction for velocity inhomogeneity and multipath interference using an ultrasonic imaging array
89.	4,470,305 Annular array used as a horn transducer
90.	4,462,408 Ultrasonic endoscope having elongated array mounted in manner allowing it to remain flexible
91.	4,462,092 Arc scan ultrasonic transducer array
92.	4,442,713 Frequency varied ultrasonic imaging array
93.	4,441,503 Collimation of ultrasonic linear array transducer
94.	4,440,025 Arc scan transducer array having a diverging lens
95.	4,409,982 Ultrasonic step scanning utilizing curvilinear transducer array
96.	4,385,255 Linear array ultrasonic transducer
97.	4,370,662 Ink jet array ultrasonic simulation
98.	4,368,643 Ultrasonic imaging by radial scan beams emanating from a hypothetical point located behind linear transducer array
99.	4,359,767 Ultrasonic array
100.	4,334,432 Ultrasonic linear array beamforming method and apparatus
101.	4,305,014 Piezoelectric array using parallel connected elements to form groups which groups are .apprxeq.1/2.lambda. in width
102.	4,276,779 Dynamically focussed array
103.	4,254,661 Ultrasonic transducer array
104.	4,215,584 Method for transmission and reception of ultrasonic beams using ultrasonic transducer element array
105.	4,211,948 Front surface matched piezoelectric ultrasonic transducer array with wide field of view
106.	4,180,790 Dynamic array aperture and focus control for ultrasonic imaging systems
107.	4,149,420 Ultrasonic phased array systems
108.	4,136,375 Shield connection in photoflash array
109.	3,990,300 Moving ultrasonic transducer array
110.	3,979,711 Ultrasonic transducer array and imaging system
111.	3,971,962 Linear transducer array for ultrasonic image conversion
112.	3,936,791 Linear array ultrasonic transducer

For more information see:
Focus on Transducers in NDTnet 03/98