Sanitized case study 04
Food Preparation and Automatic Feeding System for Periplaneta Americana
Direct grant after second OA response
The response defeated a divide-and-conquer rejection by restoring system integrity.
FIELD: Bio-agriculture / automated feedingSTAGE: SANITIZED TECHNICAL REVIEWRESULT: Direct grant after second OA response
Review boundary
Bio-agriculture / automated feeding
This is a sanitized technical-prosecution note prepared for peer-agency due diligence. Full file histories, claim amendments, cited references, and client documents are shared only after NDA and conflict clearance.
EXAMINER LOGIC
How the rejection framed the case
In the second OA, the examiner used four references plus alleged common general knowledge, split the system into isolated sub-problems, and concluded that claims 1-9 lacked inventive step, with no remaining patentable substance.
FIP RECONSTRUCTION
How the response rebuilt the case
We re-integrated the dissected features around one technical objective: multi-layer distribution of gelatinous fluid feed. The four subsystems were shown to cooperate in one unified feeding scenario and could not be covered separately by unrelated references. We also argued that D1's through-hole dripping mode actually taught away from the invention's sliding/accumulation approach.
OUTCOME
What changed procedurally
The case was granted after the second OA response without reexamination, showing our ability to defeat divide-and-conquer inventive-step reasoning.
Deep technical note
Detailed English-only prosecution analysis.
This section expands the case beyond the homepage summary so foreign counsel can assess the reasoning pattern, not just the outcome.
Diagnostic read
- The examiner split the system into isolated sub-problems and used four references plus alleged common general knowledge.
- That approach ignored the unified feeding scenario: distributing gelatinous fluid feed across multiple layers in a controlled way.
- The cited references could not cover the coordinated interaction of the subsystems once the real material behavior was restored to the analysis.
Response architecture
- Re-integrate the features around one technical objective rather than defending each component in isolation.
- Show that the through-hole dripping mode in one reference taught away from the claimed sliding and accumulation route.
- Emphasize how the subsystems cooperate in the same gelatinous-feed environment.
Due-diligence takeaways
- Divide-and-conquer inventive-step analysis can be countered by system-level reconstruction.
- Material behavior should be brought back into the claim analysis when the examiner abstracts it away.
- Teaching-away arguments are powerful when a cited reference points in the opposite operating direction.
What a peer firm can test
For a live matter, we normally ask for the relevant patent office or jurisdiction, prosecution stage, core rejection issue, principal cited references, current deadline, and a neutral technical summary. Client names and unpublished full documents can wait until NDA and conflict clearance are complete.
The first review focuses on whether the examiner has mis-modeled the technical problem, overstated a motivation to combine, relied on unsupported common knowledge, or missed an allowance route available through disciplined claim amendment.