Prosecution Insights
Last updated: August 17, 2026
Application No. 18/267,756

DUST AMOUNT ESTIMATING APPARATUS AND METHOD

Non-Final OA §101§112
Filed
Jun 15, 2023
Priority
Sep 15, 2021 — RE 10-2021-0123536 +1 more
Examiner
FUELLING, MICHAEL
Art Unit
Tech Center
Assignee
LG Chem Ltd.
OA Round
1 (Non-Final)
44%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
75%
With Interview

Examiner Intelligence

Grants 44% of resolved cases
44%
Career Allowance Rate
86 granted / 197 resolved
-16.3% vs TC avg
Strong +31% interview lift
Without
With
+31.1%
Interview Lift
resolved cases with interview
Typical timeline
4y 2m
Avg Prosecution
14 currently pending
Career history
202
Total Applications
across all art units

Statute-Specific Performance

§101
22.6%
-17.4% vs TC avg
§103
35.7%
-4.3% vs TC avg
§102
10.1%
-29.9% vs TC avg
§112
25.7%
-14.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 197 resolved cases

Office Action

§101 §112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Drawings Please label Fig. 1 prior art. Figure 1 should be designated by a legend such as --Prior Art-- because only that which is old is illustrated. See MPEP § 608.02(g). Corrected drawings in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. The replacement sheet(s) should be labeled “Replacement Sheet” in the page header (as per 37 CFR 1.84(c)) so as not to obstruct any portion of the drawing figures. If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Rejections - 35 USC § 112 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-14 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. The terms like “fine particle amount” and “dust amount” are indefinite, so the claim set fails to particularly point out and distinctly claim the metes and bounds of the invention. The term “learned model” is an undefined functional label that fails to provide objective boundaries, fails to distinguish between a multitude of possible predictive techniques, and leaves the scope of the claim uncertain. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-13 are found to be patent ineligible as software per se because the units are not hardware. Claims 1-14 are rejected under 35 U.S.C. § 101 because the claim set is directed to the abstract idea of collecting process information, analyzing the information using learned models, and generating an estimated result. The recited BPA prill tower environment is merely a field of use and does not integrate the abstract idea into a practical application. The “estimating units” are recited only functionally and do not impose meaningful limitations beyond generic model-based data processing. The claim set therefore does not recite significantly more than the abstract idea, and is ineligible under 35 USC § 101. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL FUELLING whose telephone number is (571)270-1367. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MICHAEL FUELLING/ Supervisory Patent Examiner
Read full office action

Prosecution Timeline

Jun 15, 2023
Application Filed
Jul 16, 2026
Non-Final Rejection mailed — §101, §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
44%
Grant Probability
75%
With Interview (+31.1%)
4y 2m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 197 resolved cases by this examiner. Grant probability derived from career allowance rate.

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