Inventor
Stephen J. Yanik
Inventor
Valencia, PA, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils74%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry26%
PatentTitleYear
4,179,355'Combination residual oil hydrodesulfurization and thermal cracking process'19794,179,354'Combination residual oil hydrodesulfurization and catalytic cracking process'19794,173,528'Multistage residual oil hydrodesulfurization process employing segmented feed addition and product removal'19794,170,545'Multistage residual oil hydrodesulfurization process with an interstage flashing step'19794,170,546'Multistage residual oil hydrodesulfurization process'19794,111,796'Method for presulfiding hydrodesulfurization catalysts'19784,080,286'Hydrodesulfurization process employing a Group IV-B promoted catalyst'19784,071,439'Hydrodesulfurization shutdown method'19784,053,391'Hydrodesulfurization process employing a guard chamber'19774,045,182'Hydrodesulfurization apparatus with upstaged reactor zones'19774,017,382'Hydrodesulfurization process with upstaged reactor zones'19774,016,070'Multiple stage hydrodesulfurization process with extended downstream catalyst life'19774,016,069'Multiple stage hydrodesulfurization process including partial feed oil by-pass of first stage'19773,997,430'Hydrodesulfurization process involving blending high boiling streams'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to GULF RESEARCH DEVELOPMENT CO (14)· patent assignee history
1976Based in Hampton Township, PA, US· patent location history
1977–1979Based in Valencia, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GULF RESEARCH DEVELOPMENT CO | 14 | 1976–1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Valencia, Pennsylvania, US | 13 | 1977–1979 |
| Hampton Township, Pennsylvania, US | 1 | 1976 |