Inventor

Otto Vitzthum

Inventor

Bremen, DE

Overview

13→

Patents

1978–2000

Patent span

Human necessities

Primary field (CPC A)

Patents· 13 as inventor

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

A23Fprimary

A23FCoffee25%

B01DSeparation25%

A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for10%

A23GCocoa5%

A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation5%

A24BManufacture or preparation of tobacco for smoking or chewing5%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers5%

C07DHeterocyclic compounds5%

C12CBeer5%

G01FMeasuring volume, volume flow, mass flow or liquid level5%

PatentTitleYear

6,054,162'Stabilization of liquid coffee by treatment with alkali'2000 6,025,002'Method of removing off-notes from cocoa products'2000 5,225,223'Process for the preparation of soluble coffee'1993 4,703,874'Metering device for powdered material'1987 4,540,784'Recovery of caffeine adsorbed to activated carbon'1985 4,411,923'Process for the extraction of caffeine from super-critical solutions'1983 4,328,255'Method of extracting coffee oil containing aroma constituents from roasted coffee'1982 4,198,432'Process for the production of spice extracts'1980 4,167,589'Method for the manufacture of caffeine free black tea'1979 4,153,063'Process for the extraction of nicotine from tobacco'1979 4,134,535'Pressure relief valve for packing containers'1979 4,123,559'Process for the production of spice extracts'1978 4,104,409'Production of hop extracts'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1982Patents assigned to STUDIENGESELLSCHAFT KOHLE MBH (5)· patent assignee history

1978–2000Based in Bremen, DE· patent location history

1979–1985Patents assigned to HAG AG (3)· patent assignee history

1979Patents assigned to HUBERT PETER (1)· patent assignee history

1987Patents assigned to GEN FOODS HAG (1)· patent assignee history

2000Patents assigned to KRAFT FOODS INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
STUDIENGESELLSCHAFT KOHLE MBH	5	1978–1982
HAG AG	3	1979–1985
KRAFT FOODS INC	2	2000
GEN FOODS HAG	1	1987
HUBERT PETER	1	1979

Locations

Location	Patents	Span
Bremen, DE	13	1978–2000