Inventor
John M. Longo
Inventor
New Providence, NJ, US
Overview
Patents· 38 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy15%
C01GCompounds containing metals not covered by subclasses c01d or c01f11%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals8%
G01VGeophysics8%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds6%
H01BCables5%
B01DSeparation4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
PatentTitleYear
10,739,326Analyzing a rock sample202010,725,201Compensated neutron correction for contributions outside the petrophysical model20209,201,160'Measurement of downhole gamma radiation by reduction of compton scattering'20158,809,798'Methods to enhance nuclear spectroscopy analysis'20148,573,298'Method for petrophysical evaluation of shale gas reservoirs'20138,311,744'Use of chemically and geologically consistent constraints for obtaining elemental chemistry downhole'20128,101,907'Methods for quantitative lithological and mineralogical evaluation of subsurface formations'20127,615,741'Determining organic carbon downhole from nuclear spectroscopy'20097,585,816'Method for inhibiting hydrate formation'20097,538,319'Use of thorium-uranium ratio as an indicator of hydrocarbon source rock'20095,600,044'Method for inhibiting hydrate formation'19974,876,512'Method for rapidly determining the swelling-clay content in shales and shaly sandstone formations by high-frequency dielectric constant measurements'19894,626,773'Method and means for determining rock properties using time-domain dielectric spectroscopy'19864,434,031'Method of electrocatalytic oxidation of organic compounds'19844,388,294'Oxygen deficient manganese perovskites'19834,346,063'Desulfurization of hot gas with cerium oxide'19824,286,972'Vapor phase adsorption using nonstoichiometric carbon-sulfur compounds'19814,251,496'Process for the removal of SO.sub.x and NO.sub.x from gaseous mixture containing the same'19814,225,469'Method of making lead and bismuth pyrochlore compounds using an alkaline medium and at least one solid reactant source'19804,203,871'Method of making lead and bismuth ruthenate and iridate pyrochlore compounds'19804,201,665'Use of nonstoichiometric carbon-sulfur compounds to remove components from liquids'19804,192,780'Method of making lead-rich and bismuth-rich pyrochlore compounds using an alkaline medium and a reaction enhancing anodic potential'19804,176,094'Method of making stoichiometric lead and bismuth pyrochlore compounds using an alkaline medium'19794,163,706'Bi.sub.2 [M.sub.2-x Bi.sub.x ]O.sub.7-y compounds wherein M is Ru, Ir or mixtures thereof, and electrochemical devices containing same (Bat-24)'19794,152,491'Cells having cathodes containing carbon monosulfide polymer cathode-active materials'19794,146,458'Electrochemical device having an oxygen electrode containing a pyrochlore type compound electrocatalyst'19794,143,214'Cells having cathodes containing C.sub.s S cathode-active materials'19794,130,492'MXY.sub.3 solid lubricants'19784,129,525'Method of making lead-rich and bismuth-rich pyrochlore compounds using an alkaline medium'19784,124,539'Pb.sub.2 [M.sub.2-x Pb.sub.x ]O.sub.7-y compounds wherein M is Ru, Ir or mixtures thereof, and method of preparation'19784,119,559'UO.sub.2 F.sub.2 inclusion compositions'19784,101,716'Use of high surface area mixed metal oxides of manganese and calcium in electrochemical processes'19784,093,783'Novel formulations M.sub.2 UO.sub.2 F.sub.2 and their use in electrochemical cells'19784,092,265'Process for preventing ecological contamination due to radioactive ruthenium, molybdenum or technetium'19784,060,500'Preparation of mixed metal oxides by decomposition of carbonate solid solutions having the calcite structure'19774,049,790'Layered manganese compound of the formula CA.sub.2 MN.sub.3 O.sub.8'19774,001,375'Process for the desulfurization of flue gas'19773,939,008'Use of perovskites and perovskite-related compounds as battery cathodes'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1984Patents assigned to EXXON RESEARCH ENGINEERING CO (25)· patent assignee history
1976–1984Based in New Providence, NJ, US· patent location history
1986–1997Patents assigned to EXXON PRODUCTION RESEARCH CO (3)· patent assignee history
1986–2020Based in Houston, TX, US· patent location history
2009–2015Patents assigned to BAKER HUGHES INC (7)· patent assignee history
2012–2014Patents assigned to LONGO JOHN M (4)· patent assignee history
2012–2014Patents assigned to MENDEZ FREDDY E (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXON RESEARCH ENGINEERING CO | 25 | 1976–1984 |
| BAKER HUGHES INC | 7 | 2009–2015 |
| LONGO JOHN Mself | 4 | 2012–2014 |
| EXXON PRODUCTION RESEARCH CO | 3 | 1986–1997 |
| MENDEZ FREDDY E | 3 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Providence, New Jersey, US | 25 | 1976–1984 |
| Houston, Texas, US | 13 | 1986–2020 |