Inventor

P. Donald Hopkins

Inventor

St. Charles, IL, US

Overview

1977–2002

Patent span

Chemistry

Primary field (CPC C)

Patents· 23 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C10Gprimary

C10GCracking hydrocarbon oils52%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry48%

PatentTitleYear

6,462,244'Hydrogenation catalysts'2002 5,494,870'Distillate hydrogenation catalyst'1996 5,348,928'Selective hydrotreating catalyst'1994 5,346,612'Distillate hydrogenation utilizing a catalyst comprising platinum, palladium, and a beta zeolite support'1994 5,346,874'Distillate hydrogenation'1994 5,308,814'Distillate hydrogenation catalyst'1994 5,271,828'Distillate hydrogenation'1993 5,266,188'Selective hydrotreating'1993 5,225,383'Distillate hydrogenation catalyst'1993 5,151,172'Distillate hydrogenation'1992 5,147,526'Distillate hydrogenation'1992 4,980,328'Hydrocracking catalyst'1990 4,971,680'Hydrocracking process'1990 4,925,546'Hydrocracking process'1990 4,810,355'Process for preparing dehazed white oils'1989 4,563,266'Catalytic dewaxing process'1986 4,560,469'Catalytic dewaxing process'1985 4,452,910'Chromium expanded smectite clay'1984 4,431,517'Process for mild hydrocracking of hydrocarbon feeds'1984 4,278,566'Hydrotreating process'1981 4,224,144'Hydrotreating a hydrocarbon stream to remove nitrogen and sulfur'1980 4,119,531'Large-pore hydrodemetallization catalyst and process employing same'1978 4,048,094'Reactivation of hydrotreating catalyst by operating at a temperature in excess of normal operating temperature'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1986Patents assigned to STANDARD OIL CO INDIANA (8)· patent assignee history

1977–1996Based in St. Charles, IL, US· patent location history

1989–1996Patents assigned to AMOCO CORP (14)· patent assignee history

2002Patents assigned to S & UTILDE D CHEMIE INC (1)· patent assignee history

2002Based in Louisville, KY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AMOCO CORP	14	1989–1996
STANDARD OIL CO INDIANA	8	1977–1986
S & UTILDE D CHEMIE INC	1	2002

Locations

Location	Patents	Span
St. Charles, Illinois, US	22	1977–1996
Louisville, KY, US	1	2002