Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RH

Robert A. Hard — 24 Patents

OROccidental Research: 11 patents #3 of 95Top 4%
CACabot: 7 patents #86 of 601Top 15%
KCKennecott Copper: 1 patents #11 of 25Top 45%
KHKennecott Holdings: 1 patents #46 of 138Top 35%
SFSUNY Research Foundation: 1 patents #985 of 1,231Top 85%
Laguna Beach, CA: #49 of 695 inventorsTop 8%
California: #23,266 of 386,348 inventorsTop 7%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Robert A. Hard has been granted 24 US patents while listed as an inventor at Occidental Research. The first was granted in 1980 and the most recent in August 2008. Robert A. Hard ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Robert A. Hard in Laguna Beach, CA, US.

Patents per Year

Patents granted per year, 1980 to 2008Bar chart with a peak of 4 patents in 1982.peak 41980: 1 patents19801981: 2 patents1982: 4 patents19821983: 3 patents1984: 1 patents19841986: 2 patents1987: 1 patents19871988: 1 patents1990: 1 patents19901991: 1 patents1995: 1 patents19952001: 1 patents2004: 1 patents20042005: 2 patents2007: 1 patents20072008: 1 patents2008

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7417174 Resorbable laminated repair film and method of using same Wesley Hicks, Rena Bizios, Frank V. Bright, Joseph A. Gardella, Jr., Jamson S. Lwebuga-Mukasa +2 more 2008-08-26
7282187 Recovery of metal values Patrick M. Brown, Donna D. Harbuck, G. Kyle Green 2007-10-16
6979429 Method for solubilizing metal values Patrick M. Brown, James E. Reynolds 2005-12-27 $10,811,000
6843970 Process for recovering metal values by dissolving them in a sulfuric acid solution containing a carbon source and a reducing agent 2005-01-18 $13,050,000
6800259 Methods to control H2S and arsine emissions 2004-10-05 $12,000,000
6268054 Dispersible, metal oxide-coated, barium titanate materials Stephen A. Costantino, Sridhar Venigalla 2001-07-31 $10,954,000
5437848 Recovery of metal values from process residues 1995-08-01 $12,657,000
5011742 Article for controlling the oxygen content in tantalum material James A. Fife 1991-04-30
4960471 Controlling the oxygen content in tantalum material James A. Fife 1990-10-02 $3,017,000
4722756 Method for deoxidizing tantalum material 1988-02-02 $7,723,000
4655825 Metal powder and sponge and processes for the production thereof Joseph A. Megy 1987-04-07 $36,746,000
4602820 Recovering metal values from geothermal brine 1986-07-29
4595413 Group IVb transition metal based metal and processes for the production thereof Joseph A. Megy 1986-06-17 $14,725,000
4470847 Process for making titanium, zirconium and hafnium-based metal particles for powder metallurgy Joseph A. Megy 1984-09-11 $6,796,000
4397826 Method of producing phosphorus pentoxide in a kiln with reduced carbon burnout Jacob J. Mu 1983-08-09 $4,274,000
4390365 Process for making titanium metal from titanium ore Martin A. Prieto 1983-06-28 $4,621,000
4389384 Process for reducing phosphate ore 1983-06-21 $4,725,000
4360234 In-situ method and apparatus for sparging gas bubbles Limin Hsueh, Donald H. Davidson, Ray V. Huff 1982-11-23
4359449 Process for making titanium oxide from titanium ore Martin A. Prieto 1982-11-16 $1,075,000
4351813 Process for producing phosphorus pentoxide or phosphorus or phosphoric acid Joseph A. Megy 1982-09-28 $4,418,000
4351809 Process for reducing phosphate ore Joseph A. Megy 1982-09-28 $4,418,000
4298437 Method for producing magnesium metal from molten salt 1981-11-03 $3,143,000
4291920 In situ exploitation of deep set porphyry ores Peter J. Lingane, Michael J. Redman, Won C. Park, Walter W. Harvey 1981-09-29
4241951 Recovery of magnesia from oil shale 1980-12-30 $19,957,000