Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Chemistry
Class Information
Number: 544/142
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) > Six-membered hetero ring consists of oxygen, nitrogen and carbon (e.g., 1,2-oxazines, etc) > 1,4-oxazines > Morpholines (i.e., fully hydrogenated 1,4-oxazines > Additional nitrogen containing hetero ring (e.g., thiazetidine, etc.) > Five-membered hetero ring consisting of one nitrogen and four carbons > The five-membered hetero ring is one of the cyclos in a polycyclo ring system
Description: Compounds in which the five-membered hetero ring is one of the cyclos of a polycyclo ring system.










Sub-classes under this class:

Class Number Class Name Patents
544/143 The five-membered hetero ring is one of the cyclos in a bicyclo ring system 274


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
4235903 1-Hydroxyalkanamine tetrahydrocarbazoles and cyclopent[b]indoles, compositions and method of use Nov. 25, 1980
4179503 1-Hydroxyalkanamine pyrano[3,4-b]indole derivatives Dec. 18, 1979
4153713 4-(Polyalkoxyphenyl)-2-pyrrolidones (II) May. 8, 1979
4147865 Benz-(C,D)-indolyl compounds Apr. 3, 1979
4146541 Naphtholactam dyestuffs Mar. 27, 1979
4139533 Bicyclo[2,2,1]heptane-2,3-diendo carboxylic acid imide esters of quinoline carboxylic acid Feb. 13, 1979
4132714 Production of chromenoindole compounds Jan. 2, 1979
RE29834 Cationic dyestuffs Nov. 14, 1978
4123440 Bicyclo [2.2.1]-heptane-2,3,di-endo-carboxylic acid imide esters Oct. 31, 1978
4123439 Chromenoindole compounds Oct. 31, 1978
4122273 Bicyclo [2.2.1]-heptane-2,3-di-endo-carboxylic acid imide esters Oct. 24, 1978
4118394 Pyrano- and thiopyranoindole derivatives Oct. 3, 1978
4107317 Chroman derivatives Aug. 15, 1978
4092328 Process for the preparation of indolothiopyrones and indolylthio acid intermediates used in their preparation May. 30, 1978
4064123 Morpholino containing indolothiopyrones Dec. 20, 1977
4062845 Naphtholactam dyes Dec. 13, 1977
4056538 Process for preparing pyrano- and thiopyranoindole derivatives Nov. 1, 1977
4056537 Process for making pyrano- and thiopyranoindole derivatives Nov. 1, 1977
4054654 Isoindolin-1-one derivatives Oct. 18, 1977
4048317 Chroman derivatives Sep. 13, 1977
4046776 Heterocyclic substituted lactone compounds Sep. 6, 1977
4018767 Anti-arrhythmic agents Apr. 19, 1977
4013641 Indolobenzoxazepines Mar. 22, 1977
4003898 Process for the manufacture of cationic dyestuffs Jan. 18, 1977
4003913 Pyrano- and thiopyranoindole derivatives, compositions and methods of use Jan. 18, 1977
3998823 Novel derivatives of maleopimaric acid Dec. 21, 1976
3980668 Anti-arrhythimic 5-endo-(3-indolecarbonyloxy)-N-[amino-(lower)alkyl]bicyclo[2,2,1]heptane -2,3-di-endo-carboxylic acid imides Sep. 14, 1976
3980667 Anti-arrhythmic 5-endo-substituted oxy-N-(aminoloweralkyl)bicycle [2.2.2.]o c Sep. 14, 1976
3971781 Metal salts of 1,1,5,5-tetrasubstituted dithiobiurets and their use as population control agents Jul. 27, 1976
3971806 Indolothiopyrones Jul. 27, 1976
3969346 Naphtholactamcarbinols color formers, their manufacture and use in pressure-sensitive or thermoreactive recording material Jul. 13, 1976
3963747 Basic arylmercaptonaphtholactam dyes Jun. 15, 1976
3959309 3-Amido-1,2,3,4-tetrahydrocarbazoles May. 25, 1976
3950340 Quinazoline dyes Apr. 13, 1976
3948892 2-Alkoxy(and 2-amino)-3-amino-2-heterocyclic-thiopropanamides Apr. 6, 1976
3936449 Anti-arrhythmic agents Feb. 3, 1976
3931222 Tetrahydro-carbazole derivates Jan. 6, 1976

1 2 3










 
 
  Recently Added Patents
Activated carbon cryogels and related methods
Electric vehicle supply equipment having a socket and a method of charging an electric vehicle
System and method for associating financial transaction data with user's project data
System and method for text input with a multi-touch screen
Edge alphas for image translation
Multi-user remote health monitoring system with biometrics support
Content output control device and content output control method
  Randomly Featured Patents
Identifying problems, usage patterns, and performance in a database interface using aspect-oriented programming
Two-ply papermakers forming fabric with zig-zagging MD yarns
System for recovering waste heat from exhaust
Optimized expression of HPV 52 L1 in yeast
Battery pack
Method of enhancing solubility of halogenated hydantoins
Methods and apparatus for dispersing current flow in electrosurgery
Private clustering and statistical queries while analyzing a large database
Bandwidth management for remote services system
Coloring composition comprising at least one pigment and at least one electrophilic cyanoacrylate monomer