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Inventor

Christian Haack

Inventor
Marburg, DE

Overview

4→
Patents
1979–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere25%
F25BRefrigeration machines, plants or systems25%
A01KAnimal husbandry13%
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects13%
G01NInvestigating or analysing materials by determining their chemical or physical properties13%
LOCD313%
PatentTitleYear
10,975,281Refrigerant202110,921,029Test chamber2021D0258308'Combined water tank and trough'19814,153,011'Water trough attachment for a horse trailer'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1981Patents assigned to WEISSMAN RICHARD (2)· patent assignee history
1979Patents assigned to FRIED MICHAEL W (1)· patent assignee history
1979–1981Based in Merrick, NY, US· patent location history
1981Patents assigned to FRIED MICHAEL (1)· patent assignee history
1981Patents assigned to HAACK CHRISTIAN (1)· patent assignee history
2021Patents assigned to WEISS UMWELTTECHNIK GMBH (2)· patent assignee history
2021Based in Marburg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WEISS UMWELTTECHNIK GMBH22021
WEISSMAN RICHARD21979–1981
FRIED MICHAEL11981
FRIED MICHAEL W11979
HAACK CHRISTIANself11981
Locations
LocationPatentsSpan
Marburg, DE22021
Merrick, New York, US21979–1981