Inventor
David E. Sherwood, Jr.
Inventor
Beaumont, TX, US
Overview
Patents· 40 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils47%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry45%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y02PClimate change mitigation technologies in the production or processing of goods3%
PatentTitleYear
10,507,459Process for the catalytic conversion of micro carbon residue content of heavy hydrocarbon feedstocks and a low surface area catalyst composition for use therein201910,118,161Catalyst and process for hydroconversion of a heavy feedstock20189,371,496'Catalyst and process for hydroconversion of a heavy feedstock'20169,039,891'High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use'20158,709,968'High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use'20148,372,268'High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use'20136,387,248'Method of preparing a catalyst for use in the hydrotreating of high boiling hydrocarbon feedstocks'20026,136,179'Low pressure process for the hydroconversion of heavy hydrocarbons'20005,968,348'Hydroconversion process employing a phosphorus loaded NiMo catalyst with specified pore size distribution'19995,928,499'Hydroconversion process employing catalyst with specified pore size distribution, median pore diameter by surface area, and pore mode by volume'19995,827,421'Hydroconversion process employing catalyst with specified pore size distribution and no added silica'19985,616,530'Hydroconversion process employing catalyst with specified pore size distribution'19975,545,602'Catalyst with specified pore size distribution'19965,534,135'Synthesis of zeolites'19965,514,273'Hydroconversion process employing catalyst with specified pore size distribution'19965,498,586'Catalyst with specified pore size distribution'19965,459,118'Hydrotalcite-containing catalyst composition'19955,445,728'Method for the reactivation of spent alumina-supported hydrotreating catalysts'19955,441,630'Hydrodesulfurization process'19955,435,908'Hydroconversion process employing catalyst with specified pore size distribution'19955,436,215'Mild hydrocracking of heavy hydrocarbon feedstocks employing lithia promoted catalysts'19955,416,054'Hydroconversion catalyst with specified pore size distribution'19955,399,259'Hydroconversion process employing catalyst with specified pore size distribution'19955,397,456'Hydroconversion process employing catalyst with specified pore size distribution'19955,358,633'Hydrodesulfurization of cracked naphtha with low levels of olefin saturation'19945,354,452'Synthesis of zeolites'19945,342,507'Mild hydrocracking process employing catalysts containing dealuminated y-zeolites'19945,340,466'Hydrodesulfurization of cracked naphtha with hydrotalcite-containing catalyst'19945,322,616'Mild hydrocracking of heavy hydrocarbon feedstocks employing lithia promoted catalysts'19945,308,472'Mild hydrocracking process using catalysts containing dealuminated y-zeolites'19945,254,513'Method for the reactivation of spent alumina-supported hydrotreating catalysts'19935,230,791'Process for the reactivation of spent alumina-supported hydrotreating catalysts'19935,209,840'Separation of active catalyst particles from spent catalyst particles by air elutriation'19935,143,878'Zeolite treating process'19925,112,473'Hydrotreating or cracking process employing an acidified dealuminated Y-zeolite'19925,094,994'Catalyst composition for hydroprocessing petroleum feedstocks'19925,087,348'Hydrocarbon treating process'19925,069,890'Zeolite treating process'19915,047,142'Catalyst composition and method for hydroprocessing petroleum feedstocks'19914,941,964'Hydrotreatment process employing catalyst with specified pore size distribution'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2002Patents assigned to TEXACO INC (33)· patent assignee history
1990–1996Based in Port Arthur, TX, US· patent location history
1994–2002Based in Beaumont, TX, US· patent location history
1996Patents assigned to ABB LUMMUS GLOBAL INC (1)· patent assignee history
2013–2019Patents assigned to SHELL OIL CO (6)· patent assignee history
2013Patents assigned to GINESTRA JOSIANE MARIE-ROSE (1)· patent assignee history
2013Patents assigned to KESTER JOHN G (1)· patent assignee history
2013–2019Based in Spring, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEXACO INC | 33 | 1990–2002 |
| SHELL OIL CO | 6 | 2013–2019 |
| ABB LUMMUS GLOBAL INC | 1 | 1996 |
| GINESTRA JOSIANE MARIE-ROSE | 1 | 2013 |
| KESTER JOHN G | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beaumont, Texas, US | 22 | 1994–2002 |
| Port Arthur, Texas, US | 12 | 1990–1996 |
| Spring, Texas, US | 6 | 2013–2019 |