Since the commencement of inter partes review (IPR) back on September 16, 2012, over 200 petitions have been filed. Below is a snapshot of the filings to-date. All data was retrieved from the Patent Review Processing System (PRPS) on May 3, 2013, and filings included were noted as "pending."
IPR Filings by Month (September 2012-April 2013)
| Month | IPR Pending Filings |
| September 2012 | 17 |
| October 2012 | 24 |
| November 2012 | 24 |
| December 2012 | 31 |
| January 2013 | 26 |
| February 2013 | 30 |
| March 2013 | 38 |
| April 2013 | 27 |
Filings by Technology Center (September 2012-April 2013)
| Technology Center | IPR Petitions Pending at PTAB | |
| 1600 | Biotechnology & Organic Chemistry | 18 |
| 1700 | Chemical & Materials Engineering | 19 |
| 2100 | Computer Architecture, Software, & Information Security | 36 |
| 2400 | Computer Networks, Multiplex Communication, Video Distribution, & Security | 5 |
| 2600 | Communications | 24 |
| 2800 | Semiconductors, Electrical & Optical Systems and Components | 41 |
| 2900 | Designs | 2 |
| 3600 | Transportation, Construction, Electronic Commerce, Agriculture, National Security and License & Review | 30 |
| 3700 | Mechanical Engineering, Manufacturing, Products | 21 |
Top IPR Petitioners Overall (September 2012-April 2013)
| Petitioner | Number of IPR Petitions Pending |
| Oracle | 11 |
| Corning Inc. | 10 |
| Chimei Innolux Corp. | 7 |
| Veeam Software Corp. | 7 |
| EMC Corp. | 6 |
| Research In Motion Corp. | 6 |
| ZTE Corp. | 6 |
Top Petitioners by Technology Center (September 2012-April 2013)
| Technology Center | Petitioner | Number of IPR Petitions Pending | |
| 1600 | Biotechnology & Organic Chemistry | Illumina, Inc. | 3 |
| Apotex Inc. | 2 | ||
| Butamax Advanced Biofuels LLC |
2 | ||
| International Flavors & Fragrances Inc. |
2 | ||
| 1700 | Chemical & Materials Engineering | Corning Inc. | 4 |
| Gnosis S.p.A. | 3 | ||
| 2100 | Computer Architecture, Software,
& Information Security |
Oracle | 7 |
| Veeam Software Corp. | 7 | ||
| EMC Corp. | 5 | ||
| 2400 | Computer Networks, Multiplex Communication, Video
Distribution, & Security |
Zynga, Inc. | 2 |
| 2600 | Communications | Research In Motion Corp. | 4 |
| Universal Electronics Inc. | 3 | ||
| Sony Corp. | 2 | ||
| Zynga Inc. | 2 | ||
| 2800 | Semiconductors, Electrical & Optical Systems and Components | Chimei Innolux Corp. | 7 |
| Corning Inc. | 6 | ||
| Intellectual Ventures Management, LLC |
4 | ||
| 2900 | Designs | various petitioners | |
| 3600 | Transportation, Construction,
Electronic Commerce, Agriculture, National Security and License & Review |
ZTE Corp. | 6 |
| Dominion Dealer Solutions, LLC |
5 | ||
| 3700 | Mechanical Engineering,
Manufacturing, Products |
Atrium Medical Corp. | 6 |
| LaRose industries. LLC | 2 | ||
| NuVasive, Inc. | 2 | ||
The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.
