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Placer Dome — 8 Patents

Rank (All Time): #68,164 of 105,732Top 65%
9 inventors
8 Patents All Time

Patents per Year

Patents granted per year, 1996 to 2005Bar chart with a peak of 3 patents in 2001.peak 31996: 1 patents19961997: 1 patents19971999: 1 patents19992001: 3 patents20012004: 1 patents20042005: 1 patents2005

Top Inventors at Placer Dome All Time

Showing 1–9 of 9 inventors

RankNamePatents
1 James A. King 5
2 Clement E. Furlong 2
2 James Clendenning 2
2 Noel W. Kirshenbaum 2
2 Peter Kowalczyk 2
2 Scott Jorgenson-Soelberg 2
2 Victor Chevillon 2
#8 Robert Millions 1
#8 Frank Chalmers 1

Most Valuable Patents

PatentEst. ValueYear
Methods for detecting and extracting gold$67M2004
Methods for detecting and extracting gold$58M2005
Communication system for use in a mine$52M1996
Solvent extraction process for recovering copper from copper-containing solutions$47M1999
Method for recovering gold from refractory carbonaceous ores$42M2001

All 100 most valuable US patents →

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