The patent claims can be searched using the ACLM field code.  This field code searches both independent and dependent claims.

The examples below can be used in conjunction with any number of other field codes to construct complex queries.

Independent patent claims can be searched using the DCLM field code.  This field code searches only independent claims and ignores terms found in dependent claims.

The examples below can be used in conjunction with any number of other field codes to construct complex queries.

It is often desirable to search for patents with specific fields that are empty or contain no data.   The syntax when searching for empty fields is just a little different.  Use the FIELD field code to find patents with particular empty fields.  The FIELD field code has two switches:

• isEmpty
• isNotEmpty

You further specify which OTHER field code you want to identify as having the "isEmpty" or "isNotEmpty" value.  For example.

• Field:isEmptyANO  -->  Notice the ANO field code is added immediately after the isEmpty switch.  This query finds patents with no Original Assignee names in the field.  

The opposite is also true:

• Field:isNotEmptyANO  -->  Just change the switch to "isNotEmpty" and all documents returned from your search will have a name in the ANO field.

When searching in AcclaimIP you can specify field codes to search only with specific fields.  For example, to search patent abstracts for the string "light emitting diode" you would type ABST:("light emitting diode") where ABST tells AcclaimIP to look in the abstract field only.

When you do NOT specify a field code, AcclaimIP searches a set of fields called the "Default Field Set."