John A. Dorr — 19 Patents at Xecutek

John A. Dorr has been granted 19 US patents while listed as an inventor at Xecutek. The first was granted in 1981 and the most recent in October 1996. John A. Dorr ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list John A. Dorr in Annapolis, MD, US.

Patents per Year

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Showing 1–19 of 19 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5565627	Ultrasonic edge detector and control system	—	1996-10-15
5526699	Ultrasonic gas flow measurement method and apparatus	—	1996-06-18
5488867	Strip measuring and centering system	—	1996-02-06
5442595	Capacitance-type ultrasonic transducer	—	1995-08-15
5303208	Side looking sonar transducer	—	1994-04-12	$5,990,000
5277070	Ultrasonic gas flow measurement method and apparatus	—	1994-01-11
5031493	Ultrasonic control system for cut-off or shearing machines	—	1991-07-16
4944186	Ultrasonic measuring system	—	1990-07-31
4938066	Ultrasonic apparatus for measuring the speed of sound in a gaseous medium	—	1990-07-03
4914641	Ultrasonic measuring device and method	—	1990-04-03
4815046	Ultrasonic sensor system	—	1989-03-21
4779240	Ultrasonic sensor system	—	1988-10-18
4772764	Soundwave position digitizer	—	1988-09-20
4735096	Ultrasonic transducer	—	1988-04-05
4715226	Ultrasonic apparatus for determining the amount of liquid in a container of known volume	—	1987-12-29
4654834	Weatherproofed ultrasonic transducer assembly and systems incorporating same	—	1987-03-31
4530067	Restaurant management information and control method and apparatus	—	1985-07-16
4530077	Efficient low cost transducer system	—	1985-07-16
4273212	Oil and gas well kick detector	Matt Nomm	1981-06-16	$2,204,000

John A. Dorr — 19 Patents

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