Inventor

Enzo L. Coltrinari

Inventor

Golden, CO, US

Overview

21→

Patents

1976–2000

Patent span

Chemistry

Primary field (CPC C)

Patents· 21 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C22Bprimary

C22BProduction and refining of metals26%

Y02PClimate change mitigation technologies in the production or processing of goods25%

C01GCompounds containing metals not covered by subclasses c01d or c01f15%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

C02FTreatment of water, waste water, sewage, or sludge8%

C23CCoating metallic material6%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds4%

Y10TTechnical subjects covered by former us classification2%

PatentTitleYear

6,149,883'Pressure oxidation process for the production of molybdenum trioxide from molybdenite'2000 6,013,382'Apparatus and method for inhibiting the leaching of lead in water'2000 5,660,735'Method for removing metals from waste solutions'1997 5,632,825'Apparatus and method for inhibiting the leaching of lead in water'1997 5,544,859'Apparatus and method for inhibiting the leaching of lead in water'1996 5,536,416'Method for removing metals from a solution'1996 5,399,322'Selective recovery of dissolved metals and preparation of metal salt products'1995 5,358,700'Method of extracting zinc from brines'1994 5,320,759'Selective recovery of heavy metals using xanthates'1994 4,708,804'Method for recovery of cyanide from waste streams'1987 4,606,764'Method of recovering metals from ores using a formate reducing agent'1986 4,244,735'Chloride leach process for recovering metal values in the presence of arsenic'1981 4,244,927'Process for recovering arsenic compounds by sodium hydroxide leaching'1981 4,244,734'Process for recovering metal values from materials containing arsenic'1981 4,107,261'Process for the separation of platinum group metals'1978 4,051,220'Sodium sulfide leach process'1977 4,041,126'Separation and selective recovery of platinum and palladium by solvent extraction'1977 4,029,741'Recovery of antimony sulfides'1977 4,012,481'Process for the separation of platinum group metals'1977 4,011,146'Process for separation and recovery of metal values from sulfide ore concentrates'1977 3,957,602'Recovery of copper from chalcopyrite utilizing copper sulfate leach'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Patents assigned to CYPRUS METALLURG PROCESS (2)· patent assignee history

1976–1986Based in Arvada, CO, US· patent location history

1977–1978Patents assigned to PGP IND INC (3)· patent assignee history

1981–1997Patents assigned to HAZEN RESEARCH (8)· patent assignee history

1981–2000Based in Golden, CO, US· patent location history

1986–1987Patents assigned to RESOURCE TECHN ASS (2)· patent assignee history

1997–2000Patents assigned to TECHNOLOGY MANAGEMENT ADVISORS (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HAZEN RESEARCH	8	1981–1997
PGP IND INC	3	1977–1978
CYPRUS METALLURG PROCESS	2	1976–1977
RESOURCE TECHN ASS	2	1986–1987
TECHNOLOGY MANAGEMENT ADVISORS	2	1997–2000

Locations

Location	Patents	Span
Golden, CO, US	13	1981–2000
Arvada, CO, US	8	1976–1986