Google Patent Search is Filtered?

For lawyers out there considering using Google’s new patent search tool you should know that there is considerable results filtering going on. See the following comparison from Bill Slawski wherein he searched for “internet” as the U.S. PTO site and at Google’s patent search, and got non-exhaustive results at Google:

1995
USPTO – 84 patents
Google – 124 patents

1996
USPTO – 217 patents
Google – 246 patents

1997
USPTO – 419 patents
Google – 460 patents

1998
USPTO – 1,740 patents
Google – 467 patents

1999
USPTO – 3,389 patents
Google – 416 patents

2000
USPTO – 5,055 patents
Google – 537 patents

2001
USPTO – 6,905 patents
Google – 614 patents

2002
USPTO – 8,810 patents
Google – 651 patents

2003
USPTO – 11,031 patents
Google – 667 patents

2004
USPTO – 13,800 patents
Google – 732 patents

2005
USPTO – 14,368 patents
Google – 740 patents

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Comments

  1. Jon H says:

    That should probably be repeated on the Google side, in case the indexing is ongoing.
    That said, it is certainly odd that in some early years Google has more patents than the PTO.

  2. Search results are filtered? Wow, ingenious. I thought that searches returned everything and were not filtered.

  3. John M says:

    This service is GREAT news for the casual peruser of patents (i.e. entreprenuers, students, etc.), but may be in the ‘buyer-beware’ realm for, as you say, lawyer types or any due diligence efforts. Being of the former category, I’m thrilled. Google patents absolutely beats the crap out of other alternatives – the USPTO site sucks.