Inventor

Leonard J. Czuba

Inventor

New London, CT, US

Overview

8→

Patents

1976–1981

Patent span

Chemistry

Primary field (CPC C)

Patents· 8 as inventor

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

C07Dprimary

C07DHeterocyclic compounds33%

C07CAcyclic or carbocyclic compounds17%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium11%

A23BPreservation of foods, foodstuffs or non-alcoholic beverages6%

A23KFodder6%

A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for6%

A61KPreparations for medical, dental or toiletry purposes6%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

C11BProducing, e.g. by pressing raw materials or by extraction from waste materials, refining or preserving fats, fatty substances, e.g. lanolin, fatty oils or waxes6%

PatentTitleYear

4,251,563'Compositions containing N-nitrosamine formation or oxidation inhibitors and the use thereof'1981 4,134,981'Pyrimidal [2,3,d]Pyrimidin-4(3H)-ones as antiallergy agents'1979 4,120,962'Fused pyrimidin-4(3H)-ones as antiallergy agents'1978 4,044,134'Fused pyrimidin-4(3H)-ones as antiallergy agents'1977 3,991,053'Antibacterial 1,3-dihydrofuro[3,4-b]quinoxaline 4,9-dioxides'1976 3,974,161'Fused pyrimidin-4(3H)-ones as antiallergy agents'1976 3,954,741'N-substituted prostaglandin carboxamides'1976 3,953,466'4(Tetrazol-5-yl)-butyltriphenylphosphonium halide compounds'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to PFIZER (8)· patent assignee history

1976–1981Based in New London, CT, US· patent location history

1976Based in Stonington, CT, US· patent location history

1976Based in Canterbury, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PFIZER	8	1976–1981

Locations

Location	Patents	Span
New London, CT, US	6	1976–1981
Stonington, CT, US	1	1976
Canterbury, GB	1	1976