Reissued patents

This is a beta version of a reissued patent page! It is currently based on 16,621 reissued patents granted from 1976-01-06 through 2015-04-07. The underlying patents were originally issued from 1961-10-10 through 2014-04-22 on 2,346 unique issue dates.


Now that this data is a database table we can do fun things like:
  • List the patent issue dates with the highest counts of reissued patents granted.
    Most Reissues Granted
    isdcountrange
    2010-10-2655RE41,850 - RE41,904
    2009-06-2351RE40,754 - RE40,804
    2011-10-0450RE42,765 - RE42,814
    2010-09-1450RE41,660 - RE41,709
    2010-08-1748RE41,501 - RE41,548

  • List the patent issue dates when no reissued patents were granted.
    Fewest Reissues Granted
    isdcount
    1979-12-040
    1980-01-010
    1980-04-150
    1999-08-100
    2004-09-070

  • Figure out which patent issue dates turned out to be the most prolific (issue dates with the most patents that were subsequently reissued).
    Prolific Dates
    Original isdcount
    2003-07-1539
    1997-02-0432
    1998-08-1131
    1998-06-0928
    1998-06-3028

  • List patents that were reissued the most.
    Most times reissued
    Patent noisdcount
    6,594,4002003-07-1526
    5,600,6721997-02-0419
    6,701,0182004-03-0216
    6,721,2492004-04-1313
    6,465,0692002-10-1512



Bulk patent number checker
Patent number file name:

The file specified above will be searched for patent numbers. The numbers must contain properly placed commas. Ex: 1,234,567 There can be a preceding RE, X, D, PP, AI (though not all appropriate data is loaded!) The first 1,000 patent numbers encountered will be checked to see if they are in the reissued patent table!