U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Class 540/53 - Having -C(=X)-, wherein X is chalcogen, bonded directly at the 17-position of the cyclopentanohydrophenanthrene ring system


Subclass of Class 540 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which -C- wherein X is chalcogen (i.e., oxygen,
No. of patents: 4
Last issue date: 05/17/1983


NumberTitleIssue Date
4383992Water-soluble steroid compounds
Beta-cyclodextrin forms a water-soluble complex or inclusion compound with steroid compounds having a molecular structure smaller than the interior cavity in the doughnut-shaped molecular structure of beta-cyclodextrin. The resulting inclusion compounds c...
05/17/1983
4242334Corticoid 17-(alkyl carbonates) and processes for their preparation
What is disclosed is corticoid 17-(alkyl carbonates) of the formula ##STR1## as defined in the specification, which compounds can be used in veterinary therapy and human therapy, in the form of suspensions, ointments, creams, sprays and the like, for...
12/30/1980
3984544Retinoic acid esters of steroids of the pregnane series, their use in the treatment of acne and pharmaceutical formulations useful therefor
Novel retinoic acid esters of anti-inflammatory steroids of the pregnane series are described and their use in the treatment and control of acne vulgaris via the topical or intralesional route. A preferred mode of the invention comprises treating acne by ...
10/05/1976
3932388-Azido-4,6-pregnadieno(3,2-c)pyrazoles, processes for their preparation and intermediates useful therein
Steroidal 6-azido-4,6-pregnadieno[3,2-c]pyrazoles having glucocorticoid activity are prepared by treating a 6-unsubstituted-4,6-pregnadieno[3,2-c]pyrazole with a halogen azide followed by treatment of the thereby formed 6-azido-7-halogeno-6,7-dihydro...
01/13/1976
 
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