Inventor
John A. Karch
Inventor
Chicago, IL, US
Overview
Patents· 20 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 chemistry30%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
C10GCracking hydrocarbon oils20%
C10LFuels not otherwise provided for13%
B01DSeparation2%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals2%
C01GCompounds containing metals not covered by subclasses c01d or c01f2%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds2%
C07CAcyclic or carbocyclic compounds2%
Y02PClimate change mitigation technologies in the production or processing of goods2%
PatentTitleYear
7,309,679'Attrition resistant MTO catalyst'20074,963,520'Metal-containing spinel composition and process of using same'19904,957,718'Process for reducing emissions of sulfur oxides and composition useful in same'19904,790,982'Metal-containing spinel composition and process of using same'19884,522,937'Preparative process for alkaline earth metal, aluminum-containing spinels'19854,317,713'In situ aluminum passivation process'19824,293,403'Catalyst demetallization by converting the metal poisons to a sulfur containing metal compound having a defined low amount of sulfur'19814,267,032'Demetallization process for a conversion catalyst'19814,243,550'Catalyst demetallization with a reductive SO.sub.2 wash'19814,234,452'High pressure oxygen aqueous phase catalyst demetallization'19804,224,038'Process for removing sulfur from coal'19804,204,840'Process for removing sulfur from coal'19804,197,090'Process for removing sulfur from coal'19804,163,709'Catalyst demetallization by oxidation in a defined temperature range'19794,163,710'Cracking process employing a combination of reductive and oxidative washes'19794,158,548'Process for removing sulfur from coal'19794,105,416'Process for removing sulfur from coal'19784,102,811'Catalyst demetallization by oxidation in a defined temperature range'19784,101,444'Catalyst demetallization utilizing a combination of reductive and oxidative washes'19784,097,244'Process for removing sulfur from coal'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1985Patents assigned to ATLANTIC RICHFIELD CO (15)· patent assignee history
1978–1982Based in Chicago, IL, US· patent location history
1981Patents assigned to BURK JR EMMETT H (1)· patent assignee history
1981Patents assigned to KARCH JOHN A (1)· patent assignee history
1981Based in Harvey, IL, US· patent location history
1985Based in Homewood, IL, US· patent location history
1988Patents assigned to KATALISTIKS INT INC (1)· patent assignee history
1988–1990Based in Marriottsville, MD, US· patent location history
1990Patents assigned to UOP INC (2)· patent assignee history
2007Based in Lake Zurich, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ATLANTIC RICHFIELD CO | 15 | 1978–1985 |
| UOP INC | 2 | 1990 |
| BURK JR EMMETT H | 1 | 1981 |
| KARCH JOHN Aself | 1 | 1981 |
| KATALISTIKS INT INC | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chicago, Illinois, US | 14 | 1978–1982 |
| Marriottsville, Maryland, US | 3 | 1988–1990 |
| Lake Zurich, Illinois, US | 1 | 2007 |
| Homewood, Illinois, US | 1 | 1985 |
| Harvey, Illinois, US | 1 | 1981 |