James A. King — 21 Patents at Placer Dome

James A. King has been granted 21 US patents while listed as an inventor at Placer Dome. The first was granted in 1980 and the most recent in January 2023. James A. King ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list James A. King in Green River, WY, US.

Patents per Year

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11554391	Point of use micron filtered air wand	—	2023-01-17
8061888	Autoclave with underflow dividers	Jinxing Ji	2011-11-22	$390,820,000
8029751	Reduction of lime consumption when treating refractory gold ores or concentrates	Jinxing Ji, Christopher Andrew Fleming, Cesare G. Ferron	2011-10-04
7604783	Reduction of lime consumption when treating refractor gold ores or concentrates	Jinxing Ji, Christopher Andrew Fleming, Cesare G. Ferron	2009-10-20
7033480	Process for recovering platinum group metals from material containing base metals	—	2006-04-25
6368381	Autoclave using agitator and sparge tube to provide high oxygen transfer rate to metal-containing solutions	Jinxing Ji	2002-04-09	$51,192,000
6251163	Method for recovering gold from refractory carbonaceous ores	—	2001-06-26	$42,379,000
6207443	Method for initiating heap bioleaching of sulfidic ores	—	2001-03-27	$40,470,000
6183706	Autoclave having an agitator with an aerating impeller for high oxygen transfer rate to metal-containing slurries and method of use	—	2001-02-06	$41,734,000
5895633	Solvent extraction process for recovering copper from copper-containing solutions	—	1999-04-20	$46,783,000
5833528	Cab air inlet and service access arrangement	Dean O. Baum, John J. Anderson, F. Randall Hugh	1998-11-10	$19,544,000
5698170	Hydrometallurgical process for copper-containing materials	—	1997-12-16	$33,268,000
5634855	Portable golf club swing speed indicator with downward angled collimated light sensors	—	1997-06-03
5186097	Fryer controller	Dennis John Vaseloff, Gary J. Dobrino, Wai Y. Chu	1993-02-16	$11,826,000
5132923	System for monitoring storage tanks	Charles Crawford, John H. Randolph	1992-07-21
5119894	Weighing apparatus for weighing the contents of a refuse container and method	Charles Crawford, John Prout, Fleming W. Atkin	1992-06-09
4938180	Cold start system	—	1990-07-03
4912981	Sensor protection for a compressed air tank	—	1990-04-03
4858565	Engine component heating and cooling assembly	—	1989-08-22
4448272	Method and apparatus for feeding, weighing and releasing fiber	Alex Keller, Joseph R. Williams, Erhard A. Fechner, Akiva Pinto, Charles Crawford +1 more	1984-05-15
4202667	Process for the separation of insoluble materials in the production of soda ash	Edward H. Conroy, Arthur Gloster	1980-05-13	$8,979,000