Inventor

Hanshelmut Itzel

Inventor

Gau-Algesheim, DE

Overview

9→

Patents

1983–2004

Patent span

Human necessities

Primary field (CPC A)

Patents· 9 as inventor

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

A01Nprimary

A01NPreservation of bodies of humans or animals or plants or parts thereof40%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers13%

B05BSpraying apparatus7%

B41MPrinting, duplicating, marking, or copying processes7%

D21HPulp compositions7%

G01NInvestigating or analysing materials by determining their chemical or physical properties7%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

Y10TTechnical subjects covered by former us classification7%

PatentTitleYear

6,820,013'Method and device for the online analysis of solvent mixtures'2004 5,343,653'Device for transcuticular application of active substance to plants'1994 5,201,925'Device for transcuticular application of active substances to plants'1993 5,141,940'Fungicidal liquid formulations'1992 4,892,866'Stabilized pesticidal composition'1990 4,796,381'Insecticidal compositions'1989 4,793,475'Closure caps for two-component packaging systems'1988 4,705,191'Mixing and spraying device'1987 4,405,605'Fungicidal compositions'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1989Patents assigned to CELAMERCK GMBH & CO KG (4)· patent assignee history

1983–1994Based in Gau-Algesheim, DE· patent location history

1990–1992Patents assigned to SHELL INT RESEARCH (2)· patent assignee history

1992Based in Weiterstadt, DE· patent location history

1993Patents assigned to CELAFLOR GMBH (1)· patent assignee history

1994Patents assigned to CELAFLOR GMBII (1)· patent assignee history

2004Patents assigned to MERCK PATENT GMBH (1)· patent assignee history

2004Based in Ober-Ramstadt, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CELAMERCK GMBH & CO KG	4	1983–1989
SHELL INT RESEARCH	2	1990–1992
CELAFLOR GMBH	1	1993
CELAFLOR GMBII	1	1994
MERCK PATENT GMBH	1	2004

Locations

Location	Patents	Span
Gau-Algesheim, DE	7	1983–1994
Ober-Ramstadt, DE	1	2004
Weiterstadt, DE	1	1992