MPEP § 716.04 — Long-Felt Need and Failure of Others (Annotated Rules)

§716.04 Long-Felt Need and Failure of Others

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 716.04, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Long-Felt Need and Failure of Others

This section addresses Long-Felt Need and Failure of Others. Contains: 1 requirement, 1 permission, and 3 other statements.

Key Rules

Topic

Failure of Others

2 rules
MPEP GuidanceInformativeAlways
[mpep-716-04-fd178b924df9c0aae76bcee7]
Long-Felt Need and Failure of Others Affect Obviousness
Note:
The relevance of a long-felt need and failure of others to the issue of obviousness depends on several factors, including whether the need was recognized by those skilled in the art.

Establishing long-felt need requires objective evidence that an art recognized problem existed in the art for a long period of time without solution. The relevance of long-felt need and the failure of others to the issue of obviousness depends on several factors. First, the need must have been a persistent one that was recognized by those of ordinary skill in the art. In re Gershon, 372 F.2d 535, 539, 152 USPQ 602, 605 (CCPA 1967) (“Since the alleged problem in this case was first recognized by appellants, and others apparently have not yet become aware of its existence, it goes without saying that there could not possibly be any evidence of either a long felt need in the… art for a solution to a problem of dubious existence or failure of others skilled in the art who unsuccessfully attempted to solve a problem of which they were not aware.”); Orthopedic Equipment Co., Inc. v. All Orthopedic Appliances, Inc., 707 F.2d 1376, 217 USPQ 1281 (Fed. Cir. 1983) (Although the claimed invention achieved the desirable result of reducing inventories, there was no evidence of any prior unsuccessful attempts to do so.).

Jump to MPEP SourceFailure of OthersLong-Felt but Unsolved NeedSecondary Considerations of Nonobviousness
MPEP GuidanceRequiredAlways
[mpep-716-04-86721f559310ffd7bc0149bd]
Persistent Problem Recognized by Art
Note:
The need for the invention must have been a persistent problem recognized by those skilled in the art before the invention was made.

Establishing long-felt need requires objective evidence that an art recognized problem existed in the art for a long period of time without solution. The relevance of long-felt need and the failure of others to the issue of obviousness depends on several factors. First, the need must have been a persistent one that was recognized by those of ordinary skill in the art. In re Gershon, 372 F.2d 535, 539, 152 USPQ 602, 605 (CCPA 1967) (“Since the alleged problem in this case was first recognized by appellants, and others apparently have not yet become aware of its existence, it goes without saying that there could not possibly be any evidence of either a long felt need in the… art for a solution to a problem of dubious existence or failure of others skilled in the art who unsuccessfully attempted to solve a problem of which they were not aware.”); Orthopedic Equipment Co., Inc. v. All Orthopedic Appliances, Inc., 707 F.2d 1376, 217 USPQ 1281 (Fed. Cir. 1983) (Although the claimed invention achieved the desirable result of reducing inventories, there was no evidence of any prior unsuccessful attempts to do so.).

Jump to MPEP SourceFailure of OthersLong-Felt but Unsolved NeedSecondary Considerations of Nonobviousness
Topic

Maintenance Fee Payment

2 rules
MPEP GuidancePermittedAlways
[mpep-716-04-c90d34955221eb55033b346d]
Failure to Solve Long-Felt Need Not Due to Lack of Technical Knowledge
Note:
The failure to address a long-felt need is often due to lack of interest or appreciation for an invention's potential rather than the absence of technical knowledge.

The failure to solve a long-felt need may be due to factors such as lack of interest or lack of appreciation of an invention’s potential or marketability rather than want of technical know-how. Scully Signal Co. v. Electronics Corp. of America, 570 F.2d 355, 196 USPQ 657 (1st. Cir. 1977).

Jump to MPEP SourceMaintenance Fee Payment
MPEP GuidanceInformativeAlways
[mpep-716-04-d370966481568e9db80030e7]
Failure to Solve Long-Felt Need Not Due to Lack of Technical Knowledge
Note:
The failure to address a long-felt need may be attributed to factors like lack of interest or marketability, not the absence of technical knowledge.

The failure to solve a long-felt need may be due to factors such as lack of interest or lack of appreciation of an invention’s potential or marketability rather than want of technical know-how. Scully Signal Co. v. Electronics Corp. of America, 570 F.2d 355, 196 USPQ 657 (1st. Cir. 1977).

Jump to MPEP SourceMaintenance Fee Payment
Topic

Long-Felt but Unsolved Need

1 rules
MPEP GuidanceInformativeAlways
[mpep-716-04-ec92178f2a64a9fe5c539db8]
Requirement for Objective Evidence of Long-Persisted Problem
Note:
The rule requires objective evidence showing a recognized problem existed in the art for a long time without a solution.

Establishing long-felt need requires objective evidence that an art recognized problem existed in the art for a long period of time without solution. The relevance of long-felt need and the failure of others to the issue of obviousness depends on several factors. First, the need must have been a persistent one that was recognized by those of ordinary skill in the art. In re Gershon, 372 F.2d 535, 539, 152 USPQ 602, 605 (CCPA 1967) (“Since the alleged problem in this case was first recognized by appellants, and others apparently have not yet become aware of its existence, it goes without saying that there could not possibly be any evidence of either a long felt need in the… art for a solution to a problem of dubious existence or failure of others skilled in the art who unsuccessfully attempted to solve a problem of which they were not aware.”); Orthopedic Equipment Co., Inc. v. All Orthopedic Appliances, Inc., 707 F.2d 1376, 217 USPQ 1281 (Fed. Cir. 1983) (Although the claimed invention achieved the desirable result of reducing inventories, there was no evidence of any prior unsuccessful attempts to do so.).

Jump to MPEP SourceLong-Felt but Unsolved NeedSecondary Considerations of NonobviousnessFailure of Others

Citations

Primary topicCitation
In re Cavanagh, 436 F.2d 491, 168 USPQ 466 (CCPA 1971)
Failure of Others
Long-Felt but Unsolved Need
In re Gershon, 372 F.2d 535, 539, 152 USPQ 602, 605 (CCPA 1967)
In re Tiffin, 443 F.2d 394, 170 USPQ 88 (CCPA 1971)
Failure of Others
Long-Felt but Unsolved Need
Orthopedic Equipment Co., Inc. v. All Orthopedic Appliances, Inc., 707 F.2d 1376, 217 USPQ 1281 (Fed. Cir. 1983)

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31