Inventor

Randolph T. Hatch

Inventor

Wellesley, MA, US

Overview

9→

Patents

1982–2006

Patent span

Chemistry

Primary field (CPC C)

Patents· 9 as inventor

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

B01Dprimary

B01DSeparation24%

C02FTreatment of water, waste water, sewage, or sludge24%

C12NMicroorganisms or enzymes24%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture18%

C07CAcyclic or carbocyclic compounds6%

C11DDetergent compositions6%

PatentTitleYear

7,091,000'Bacterial strains which overproduce riboflavin and methods of use thereof'2006 6,551,813'Nutrient medium for bacterial strains which overproduce riboflavin'2003 5,925,538'Bacterial strains which overproduce riboflavin'1999 4,900,669'Dual-stage fermentation'1990 4,621,153'Purification and recovery of amino acids'1986 4,496,470'Cleaning composition'1985 4,460,472'Scale inhibitor for reverse osmosis water purification system'1984 4,386,005'Scale inhibitor for reverse osmosis water purification system'1983 4,357,254'Cleaning composition'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1983Patents assigned to CHEMICAL SCIENCES INC (2)· patent assignee history

1982–1985Based in Silver Spring, MD, US· patent location history

1984–1985Patents assigned to GOODRICH CO B F (2)· patent assignee history

1986–1990Patents assigned to BIOTEKNIKA INTERNATIONAL (2)· patent assignee history

1986–2006Based in Wellesley, MA, US· patent location history

1999–2003Patents assigned to ROCHE VITAMINS INC (2)· patent assignee history

2006Patents assigned to DSM NUTRITIONAL PROD INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BIOTEKNIKA INTERNATIONAL	2	1986–1990
CHEMICAL SCIENCES INC	2	1982–1983
GOODRICH CO B F	2	1984–1985
ROCHE VITAMINS INC	2	1999–2003
DSM NUTRITIONAL PROD INC	1	2006

Locations

Location	Patents	Span
Wellesley, Massachusetts, US	5	1986–2006
Silver Spring, Maryland, US	4	1982–1985