Patent Trial & Appeal Board (PTAB) Data

Ex Parte Appeals

"Ex parte" is a Latin term meaning "from (by or for) one party." These metrics show how long appeals from adverse decisions of examiners in individual patent applications and reissue proceedings have been at the Patent Trial and Appeal Board (PTAB) awaiting decision.

Appeal Inventory

Appeal Inventory Last Three Years

The "Appeal Inventory" chart shows the number of ex parte appeal matters before the PTAB on appeal and how long these appeals have been pending at the PTAB.


Requests for Re-hearing

Requests for Re-hearing Appeal Inventory Last Three Years

The "Requests for Rehearing" chart shows the number of rehearing requests filed on decisions in ex parte appeals that have not yet been decided by the PTAB and how long these requests have been pending before the PTAB. These metrics cover only appeals available to be decided. They do not include security applications designated for appeal but still currently classified.

Ex Parte Reexamination

"Ex parte" is a Latin term meaning "from (by or for) one party." These metrics show how long appeals from adverse decisions of examiners in individual reexamination proceedings have been at the Patent Trial and Appeal Board (PTAB) awaiting decision.

Appeal Inventory

Appeal Inventory Last Three Years

The "Appeal Inventory" chart shows the number of ex parte reexamination appeal matters before the PTAB on appeal and how long these appeals have been pending at the PTAB.


Requests for Re-hearing

Requests for Re-hearing Appeal Inventory Last Three Years

The "Requests for Rehearing" chart shows the number of rehearing requests filed on decisions in ex parte reexamination appeals that have not yet been decided by the PTAB and how long these requests have been pending before the PTAB. These metrics cover only reexamination requests available to be decided.

Inter Partes Reexamination

"Inter partes" is Latin for "between the parties." These metrics show how long appeals from adverse decisions of examiners in individual inter partes reexamination proceedings have been at the Patent Trial and Appeal Board (PTAB) awaiting decision.

Appeal Inventory

Appeal Inventory Last Three Years

The "Appeal Inventory" chart shows the number of inter partes reexamination appeal matters before the PTAB on appeal and how long these appeals have been pending at the PTAB.


Requests for Re-hearing

Requests for Re-hearing Appeal Inventory Last Three Years

The "Requests for Rehearing" chart shows the number of rehearing requests filed on decisions in inter partes reexamination appeals that have not yet been decided by the PTAB and how long these requests have been pending before the PTAB.

Interference Aging

Interference Aging Cases

Interference Aging Cases Last Three Years

An interference proceeding, also known as a priority contest, is a proceeding to determine priority of invention issues of multiple patent applications. This metric reflects the age of ongoing interference proceedings pending at the PTAB.