Inventor
Robert E. Ledley
Inventor
Hockessin, DE, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry29%
C07CAcyclic or carbocyclic compounds29%
C10GCracking hydrocarbon oils14%
G01BMeasuring length, thickness or similar linear dimensions14%
G01DMeasuring not specially adapted for a specific variable14%
PatentTitleYear
4,895,818'Phosphonite-and phosphinite-promoted ruthenium - cobalt catalysts for the dealkoxyhydroxymethylation of acetals to form glycol ethers'19904,895,987'Phosphonite-and phosphonite-promoted ruthenium - cobalt catalysts for the dealkoxyhydroxymethylation of acetals to form glycol ethers'19904,491,516'Hydrolysis of carbonyl sulfide over alumina'19854,103,427'Electronic digital micrometer'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to SUNTECH (1)· patent assignee history
1978Based in Wilmington, DE, US· patent location history
1985–1990Patents assigned to SUN REFINING & MARKETING (3)· patent assignee history
1985–1990Based in Hockessin, DE, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUN REFINING & MARKETING | 3 | 1985–1990 |
| SUNTECH | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hockessin, Delaware, US | 3 | 1985–1990 |
| Wilmington, Delaware, US | 1 | 1978 |