What is the Graham v. John Deere framework for obviousness?
The Graham v. John Deere framework is the four-inquiry analysis that courts and the USPTO use to determine whether a claimed invention would have been obvious. Mastering it is essential for responding to obviousness rejections and for evaluating the strength or vulnerability of a patent.
The statutory foundation
Under 35 U.S.C. 103, a patent cannot be obtained when the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date to a person having ordinary skill in the art.
An important corollary is built into the statute: patentability shall not be negated by the manner in which the invention was made. Whether the inventor worked for years or arrived at the idea quickly, the test looks at the invention through the eyes of the hypothetical skilled person, not the inventor.
How Graham anchored the framework
The Graham Court held that Section 103 codified the judicial Hotchkiss standard established in 1851, and that Congress intended to stabilize existing law rather than lower patentability standards. The framework the Court articulated in 1966 remains the controlling structure for every U.S. obviousness determination.
The four factual inquiries
1. Scope and content of the prior art. The first Graham factual inquiry requires determining the scope and content of the prior art. The prior art pool includes patents, publications, and general knowledge in the field.
2. Differences between the prior art and the claims. The second Graham factual inquiry requires ascertaining the differences between the prior art and the claims at issue. This step maps what the applicant claims against what the prior art already discloses, isolating what is genuinely new.
3. Level of ordinary skill in the pertinent art. The third Graham factual inquiry requires resolving the level of ordinary skill in the pertinent art. The hypothetical skilled person is the lens through which the prior art and the claimed differences are evaluated: someone with typical technical competence in the field, not an expert and not the inventor.
4. Obviousness or nonobviousness against that background. Against the background of the first three factual inquiries, the fourth Graham inquiry requires determining whether the subject matter as a whole would have been obvious or nonobvious. Under the Graham framework, the four underlying inquiries are factual, and the ultimate determination of obviousness or nonobviousness is the legal conclusion reached against that factual background.
Secondary considerations (objective indicia of nonobviousness)
The Graham Court recognized that secondary considerations such as commercial success, long felt but unsolved needs, and failure of others might be utilized to give light to the circumstances surrounding the origin of the subject matter sought to be patented. The Court noted secondary considerations may have relevancy as indicators but that they operate within the primary factual framework rather than replacing it.
The USPTO MPEP lists objective indicia of nonobviousness including commercial success, long-standing problems that remained unresolved until the invention, documented failure of others, and unexpected results.
Secondary considerations are most effective when the evidence is directly tied to the inventive features of the claims, not to unrelated product attributes or marketing. Presenting broad marketplace data without that connection typically carries little weight.
KSR International: keeping the Graham analysis flexible
In KSR International Co. v. Teleflex Inc., 550 U.S. 398 (2007), the Supreme Court reaffirmed the Graham framework as the governing standard for obviousness while holding that the analysis must remain expansive and flexible rather than formulaic.
Before KSR, the Federal Circuit had applied a teaching, suggestion, or motivation test requiring documentary evidence of a specific motivation to combine prior art references before an obviousness conclusion could be sustained. The KSR Court held that the Federal Circuit erred by transforming this test into a rigid rule that limits the obviousness inquiry, and that while the test captured a helpful insight, it should not become a rigid and mandatory formula.
KSR contributed three principles to the flexible application of the Graham analysis:
Predictable combinations. A combination of familiar elements according to known methods is likely to be obvious when it does no more than yield predictable results. After KSR, examiners may rely on ordinary reasoning and common sense within the field, not just explicit documentary evidence, to support an obviousness conclusion.
Ordinary creativity. A person of ordinary skill is also a person of ordinary creativity, not an automaton. A skilled practitioner can make inferences and apply ingenuity within normal technical competence, and an obviousness analysis accounts for that capacity.
Obvious to try. When there is a design need or market pressure to solve a problem and there are a finite number of identified, predictable solutions, a person of ordinary skill has good reason to pursue the known options. Where the number of candidate solutions is small and success is reasonably predictable, selecting among them may be obvious.
The Graham framework at a glance
| Inquiry | What it asks |
|---|---|
| 1. Prior art scope and content | What was publicly known in the relevant field before the effective filing date? |
| 2. Differences from the prior art | What does the claim add that the prior art does not already disclose? |
| 3. Level of ordinary skill | What would a practitioner of typical competence in the field have known? |
| 4. Obviousness or nonobviousness | Would that skilled person have found the differences obvious? |
| Secondary considerations | Is there objective evidence (commercial success, long felt need, failure of others, unexpected results) pointing toward nonobviousness? |
Practical notes for practitioners
- Complete the four factual inquiries before reaching the legal conclusion. The framework is sequential. Obviousness rejections and findings that collapse the steps, or that assume the legal conclusion without separately addressing the level of ordinary skill and the specific claim differences, are vulnerable on appeal.
- Build the secondary-considerations record during prosecution. Evidence of commercial success, long felt need, and failure of others is difficult to develop once prosecution closes. If the client has marketplace evidence, document it before filing and present it in response to a first office action.
- Tie secondary-considerations evidence to the specific claim features. Broad evidence of marketplace success helps only when it flows from the inventive features of the claims, not from unrelated product attributes or marketing efforts. Showing the nexus between the evidence and the claim scope is the practitioner's burden.
- Do not assume the absence of an explicit teaching to combine saves the claim. After KSR, an examiner need not cite a document saying "combine A with B." If the combination yields predictable results from known elements using established methods, a rejection can stand on common-sense grounds. Evaluate the prior art from the perspective of what a person of ordinary creativity in the field would have found predictable.
- Address the level of ordinary skill when the examiner's assumption is contestable. The hypothetical skilled person's vantage point frames all four Graham inquiries. When the examiner's rejection implicitly assumes a higher or lower skill level than the facts support, contest it explicitly in the response and build a record on that point.