Support : Publications : Chronolog Archives : Issue 3, 2005

From Chemical Structure to Fulltext Patent

It's as easy as 1-2-3. Even though you may not be a chemist, DialogLink 5 makes searching for a chemical structure and finding the corresponding patent quick, easy and affordable. You need two things: DialogLink 5 installed on your computer (free from support.dialog.com/dialoglink); and a chemical structure drawing in a .MOL file. Saving to .MOL format is an option in most chemical structure drawing packages. Note: If you draw your own chemical structures, DialogLink 5 supports most drawing packages, so you can draw your own structure and continue with the process as outlined.

In this illustration, you will use two Dialog databases: Derwent Chemistry Resource (DCR) (File 355) and Derwent World Patents Index (Files 350, 351, 352).

• DCR cites chemical structures from more than one million patents dating back to 1981 within Sections B, C and E (Pharmaceuticals, Agrochemicals and General Chemistry) of Derwent World Patents Index. File 355 contains DCR numbers that uniquely identify each chemical structure. These numbers can be used to search Files 350, 351 and 352.
  
  
• Derwent World Patents Index provides access to information from more than 22.9 million patent documents from 41 patent-issuing countries.

Here's how it works.

1. Begin your search in Derwent Chemistry Resource (DCR) (File 355), type CSS to go directly to your folder with saved molecular drawing files (.MOL), and select the one you want to search, in this example "curcumin" (Figure 1).
   
   Note: You will be asked to select the search type; in this example search all substructures for a broader search.
   
2. TYPE one of the records; click Links at the top of the record to link to the appropriate Derwent World Patents Index file from the drop-down menu (Figure 2).
   
3. Click the set number in the Set Links pane from which you want to order patents from the Thomson Patent Store. (Figure 3).

If the patent is available in Adobe Acrobat® PDF format, you can click the patent number to display it. You may have patents e-mailed to you, instead, by clicking the checkbox next to the patent(s) of interest (Figure 4).

You have just used a chemical structure to find a patent based on that structure. Simple, fast, low cost!

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