Inventor
John E. Litz
Inventor
Lakewood, CO, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge24%
C22BProduction and refining of metals21%
C01GCompounds containing metals not covered by subclasses c01d or c01f18%
Y02PClimate change mitigation technologies in the production or processing of goods12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents3%
C04BLime, magnesia3%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management3%
PatentTitleYear
10,875,787Radium removal from aqueous media using zeolite materials20209,908,788'Radium removal from aqueous media using zeolite materials'20188,663,479'Method for removing cationic contaminants from water using natural zeolite underloaded with transition metal ions to limit leakage of intrinsic arsenic therefrom'20147,476,311'Arsenic removal from aqueous media using chemically treated zeolite materials'20097,326,348'Method for removal and destruction of ammonia from an aqueous medium'20087,108,784'Apparatus for removal and destruction of ammonia from an aqueous medium'20067,105,087'Hexa-valent chromium removal from aqueous media using ferrous-form zeolite materials'20066,818,191'Autoclave control mechanisms for pressure oxidation of molybdenite'20046,730,279'Production of pure molybdenum oxide from low grade molybdeniteconcentrates'20046,403,044'Method and apparatus for stabilizing liquid elemental mercury'20025,354,358'Process for removing uranium and other metals from wastes'19944,814,149'Process for recovering molybdenum from solution in a form that is substantially free from vanadium'19894,606,764'Method of recovering metals from ores using a formate reducing agent'19864,548,794'Method of recovering nickel from laterite ores'19854,541,868'Recovery of nickel and cobalt by controlled sulfuric acid leaching'19854,541,994'Method of liberating nickel- and cobalt-enriched fines from laterite'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985Patents assigned to CALIFORNIA NICKEL CORP (3)· patent assignee history
1985–2020Based in Lakewood, CO, US· patent location history
2002Patents assigned to ADA TECHNOLOGIES INC (1)· patent assignee history
2004Patents assigned to STARCK H C INC (2)· patent assignee history
2004Based in Golden, CO, US· patent location history
2006–2014Patents assigned to WRT INTERNAT LLC (5)· patent assignee history
2018–2020Patents assigned to WRT INT LLC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WRT INTERNAT LLC | 5 | 2006–2014 |
| CALIFORNIA NICKEL CORP | 3 | 1985 |
| STARCK H C INC | 2 | 2004 |
| WRT INT LLC | 2 | 2018–2020 |
| ADA TECHNOLOGIES INC | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lakewood, CO, US | 14 | 1985–2020 |
| Golden, CO, US | 2 | 2004 |