Inventor
Ralph J. Spohn
Inventor
Woodcliff Lake, NJ, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds36%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%
Y02PClimate change mitigation technologies in the production or processing of goods21%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C10MLubricating compositions7%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions7%
PatentTitleYear
6,362,286'Molecular weight reduction of olefin copolymers using low-sulfur oils'20024,499,317'Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene'19854,487,713'Production of isocyanates from esters of aromatic carbamic acids (urethanes)'19844,483,936'Modified zeolite catalyst composition for alkylating toluene with methanol to form styrene'19844,321,402'Carbamate process'19824,255,279'Dual demetalling of oxo products with catalyst recycle'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1985Patents assigned to EXXON RESEARCH ENGINEERING CO (5)· patent assignee history
1981Based in Baton Rouge, LA, US· patent location history
1982–2002Based in Woodcliff Lake, NJ, US· patent location history
2002Patents assigned to EXXON CHEMICAL PATENTS INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXON RESEARCH ENGINEERING CO | 5 | 1981–1985 |
| EXXON CHEMICAL PATENTS INC | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Woodcliff Lake, New Jersey, US | 5 | 1982–2002 |
| Baton Rouge, LA, US | 1 | 1981 |