One Dispenser, Three Claim Groups: Unity, Clarity and Added Matter
On 12 February 2026 a Malaysian applicant files a patent application for a 'smart dispenser'. Claim 1 recites a dispenser with a self-sealing valve comprising 'a resilient member formed from a material having a hardness of about 30-60 Shore A and a substantially circular lip'. Claim 2 adds 'a wireless inventory sensor configured to transmit a remaining-volume signal every 15 minutes'. Claim 3 is a method of calibrating the sensor using a smartphone app and 'sending a promotional message when volume falls below 10%'. The description contains detailed valve test data, but the sensor appears only in one optional paragraph and the calibration algorithm is not described. The examiner objects that the claims lack unity, that 'about' and 'substantially circular' are unclear, and that claim 3 is not supported. The client wants to keep all claims and also add 'wherein the valve is 3D printed' because that feature appeared on a slide used at a sales meeting, not in the application. A divisional is possible, but the client asks whether it is necessary.
1. Advise on the unity objection. Identify the inventive concepts, propose a claim set, and explain whether a divisional is needed.
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Unity is assessed by asking whether the claims share a single general inventive concept, usually expressed as the same or corresponding special technical feature. Here there are three candidate concepts:
- Claim 1 solves a sealing/leakage problem through valve geometry and material hardness.
- Claim 2 solves an inventory-monitoring problem through a wireless sensor and a 15-minute transmission schedule.
- Claim 3 solves a calibration and customer-promotion problem through a smartphone app and a business rule.
The only common feature is the dispenser body, which is a generic carrier. The valve features do not make a technical contribution to the sensor, and the sensor does not make a technical contribution to the valve. Claim 3 is further removed and includes a promotional/business step. A unity objection is therefore likely to succeed.
The practical claim set is to keep claim 1 and its valve-dependent claims as the main application. The sensor subject matter should be pursued only if the description as filed supports it; on these facts the sensor is only an optional paragraph, so a divisional may fail for lack of support or sufficiency. Claim 3 should be deleted unless the calibration steps are actually disclosed. If the sensor is adequately supported, file a divisional before grant; do not keep it in the main case merely to avoid a divisional fee. A divisional is not automatically necessary, but it is the only way to preserve a separate sensor concept without a unity objection.
2. Advise on the clarity and support objections to claims 1 and 3, and on the proposed addition of the 3D-printed feature.
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Clarity: about 30-60 Shore A is a numerical range with an open-ended tolerance. Unless the description explains that the tolerance is not critical, the examiner may object. The safer amendment is to delete about or, if the description supports it, recite 30-60 Shore A or 30-60 Shore A ± 5. Substantially circular is a relative term with no measurable boundary. Amend to a structural definition such as circular to within 0.5 mm or having an eccentricity of no more than 0.1, but only if the description provides a basis. Otherwise the term remains vulnerable.
Support: claim 3 recites a calibration method and a promotional message. The description does not describe the calibration algorithm or the 10% promotion rule. Under Malaysian practice, claims must be supported by the description and the description must enable the skilled person to perform the invention. The applicant cannot cure this by adding algorithm details that were not in the application as filed. Claim 3 should be deleted or limited to steps that are actually disclosed.
Added matter: the 3D-printed feature appears only on a sales-meeting slide. A slide used externally is not part of the application as filed. Adding it would introduce new matter and is not allowable. It could also create a novelty problem if the slide was a public disclosure. The client should be advised not to add the feature; if 3D printing is commercially essential, a new application may be considered, but the earlier slide may already be prior art.
3. If the client insists on keeping claim 3, what amendment or evidence would you need, and what are the risks?
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To keep claim 3, the amendment must be based strictly on the application as filed. I would first search the description and drawings for any disclosure of: the calibration inputs, the calibration calculation, the smartphone interaction, and the 10% threshold. If those are absent, no amendment can save the claim; adding them would be added matter and would also raise a sufficiency problem because the skilled person could not perform the calibration.
If some steps are disclosed, I would narrow claim 3 to those steps and remove the promotional message, which is a business method and is likely excluded subject matter. I would also check whether the calibration produces a technical effect, such as correcting a sensor drift, rather than merely displaying a business result. Evidence of that effect must come from the original description, not from later experiments.
The risks are: (i) the examiner maintains a support objection; (ii) the amendment is refused as added matter; (iii) even if allowed, the claim remains excluded as a business method or computer program per se; and (iv) the client spends money on a divisional that has no adequate basis. My advice would be to delete claim 3 from the main application and reserve the calibration idea for a separate application only if there is a properly disclosed technical method. The client should be told that keeping an unsupported claim risks the whole application and delays grant.