Inventor
Peter S. Maa
Inventor
Baytown, TX, US
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils66%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C10BDestructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials6%
C10JProduction of producer gas, water-gas, synthesis gas from solid carbonaceous material, or mixtures containing these gases3%
C10LFuels not otherwise provided for3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
9,994,778Direct coal liquefaction process and system20187,419,585'Process for upgrading residua'20087,160,437'Method for determining the source of fouling in thermal conversion process units'20075,795,464'Conversion of the organic component from tar sands to lower boiling products'19985,338,441'Liquefaction process'19945,294,349'Coal depolymerization and hydroprocessing'19945,096,569'Catalytic hydropyrolysis of carbonaceous material with char recycle'19925,055,181'Hydropyrolysis-gasification of carbonaceous material'19914,831,003'Catalyst composition and process of making'19894,824,558'Coal liquefaction process with metal/iodine cocatalyst'19894,485,008'Liquefaction process'19844,338,184'Coal conversion in the presence of added alkali metal compounds'19824,338,182'Multiple-stage hydrogen-donor coal liquefaction'19824,322,283'Coal conversion in the presence of added hydrogen sulfide'19824,313,816'Staged temperature coal conversion process'19824,283,267'Staged temperature hydrogen-donor coal liquefaction process'19814,189,371'Multiple-stage hydrogen-donor coal liquefaction process'19804,123,347'Coal liquefaction process'19784,113,602'Integrated process for the production of hydrocarbons from coal or the like in which fines from gasifier are coked with heavy hydrocarbon oil'19784,092,235'Treatment of coal by alkylation or acylation to increase liquid products from coal liquefaction'19784,022,680'Hydrogen donor solvent coal liquefaction process'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1998Patents assigned to EXXON RESEARCH ENGINEERING CO (18)· patent assignee history
1977–1984Based in Baytown, TX, US· patent location history
1989–2008Based in Baton Rouge, LA, US· patent location history
2007–2008Patents assigned to EXXONMOBIL RES & ENG CO (2)· patent assignee history
2018Patents assigned to ACCELERGY CORP (1)· patent assignee history
2018Based in Sugar Land, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXON RESEARCH ENGINEERING CO | 18 | 1977–1998 |
| EXXONMOBIL RES & ENG CO | 2 | 2007–2008 |
| ACCELERGY CORP | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Baytown, Texas, US | 11 | 1977–1984 |
| Baton Rouge, LA, US | 9 | 1989–2008 |
| Sugar Land, Texas, US | 1 | 2018 |