Locate All Patents for a Specific Company?

TOPIC: In this example, you will obtain all patents that relate to Cincinnati Milacron, a worldwide manufacturer of machine tools, using Derwent World Patents Index® (File 351).

Patent assignees are searched using the PA= prefix. In addition, if a company has a significant number of patents, it may be assigned a code by the database producer. The code may vary depending on the database. Derwent World Patents Index provides a four-digit assignee code (CARL) as in this example. If a company does not hold enough patents to be assigned a separate code, it may be assigned "N" which means that the code is also assigned to other companies. Using this assignee code can retrieve false hits. (Note: Derwent World Patents Index also includes "I" to designate patents assigned to individuals.) U.S. Patents Fulltext (Files 654, 652) and CLAIMS®/U.S. Patents (File 340) have numeric assignee codes (e.g., pa=53126). For the most comprehensive results, "OR" together the codes and the company name(s).

COMMAND SUMMARY

BEGIN 351
VE PA=CINCINNATI MILACRON
Check all check boxes with the assignee code CARL
SELECT CK=CARL
SELECT S1 OR S2
TYPE S3/3/1

HOW TO...

1. BEGIN 351, Derwent World Patents Index, a file covering 40 patent issuing countries. 2. Use Visual Expand (VE), the patent assignee prefix (PA=) and the company name.
3. SELECT all appropriate entries, in this case all entries with the 4-digit assignee code "CARL" and click Select.
4. SELECT the prefix CK= and the 4-digit assignee code that follows the assignee name to retrieve entries for CARL.   5. OR together the assignee code set (S2) and the assignee name set (S1) for comprehensive results.
6. TYPE out a record in MEDIUM format (Format 3) to see the patent assignee.

RELATED HOW DO I...? SOLUTIONS

• Find legal status for a patent?
• Find a patent using a U.S. application number?
• Find a Japanese patent?
• Find a complete patent family using Derwent World Patents Index (File 351)?
• Order a patent from the Thomson Patent Store?
• Search using a patent or publication number?

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Stock #: 53108; Last modified: 14 Sep 2011

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