Prosecution Insights
Last updated: October 04, 2026
Application No. 17/809,101

COMPOSITIONS AND METHODS FOR MAKING PAPER USING UNCOOKED STARCH FOR GYPSUM PANELS

Non-Final OA §112
Filed
Jun 27, 2022
Priority
Jul 02, 2021 — provisional 63/217,919
Examiner
HON, SOW FUN
Art Unit
1782
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Knauf Gips KG
OA Round
2 (Non-Final)
58%
Grant Probability
Moderate
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
452 granted / 784 resolved
-7.3% vs TC avg
Strong +65% interview lift
Without
With
+64.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
34 currently pending
Career history
835
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
59.9%
+19.9% vs TC avg
§102
13.4%
-26.6% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 784 resolved cases

Office Action

§112
DETAILED ACTION 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 . Response to Amendment Withdrawn Rejections The 35 U.S.C. 112(b) rejection of claims 13, 35 is withdrawn due to Applicant’s cancellation of said claims in the response filed on May 6, 2026. The 35 U.S.C. 103 rejection of claims 1-14, 33, 35 over Hietaniemi in view of Francis and Vrbanac, is withdrawn due to Applicant’s cancellation of said claims in the response filed on May 6, 2026. New Rejections Claim Rejections - 35 USC § 112 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 36-50 are rejected under 35 U.S.C. 112(b), as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Regarding claim 36, it is unclear what the final structure of the gypsum wallboard panel is, to distinguish it from the intermediate structure comprising the gypsum core layer formed over the paper cover sheet. It is unclear whether the uncooked starch of lines 4-5, remains uncooked in the final structure of the gypsum wallboard panel. It is unclear what structure and composition distinguish the uncooked starch from a cooked starch. Is a cooked starch a gelatinized starch? What is the difference between a pregelatinized starch and a gelatinized starch? Can an uncooked starch be a pregelatinized starch? In addition, claim 50 recites the limitation "the stucco" in line 2. There is insufficient antecedent basis for this limitation in the claim itself, as well as the preceding claim 48 and the parent claim 36. Furthermore, gypsum and stucco are made of different materials. Accordingly, it is also unclear where the stucco might fit in the gypsum wallboard panel. Claims 37-50 depend on and include all the subject matter of claim 36, but fail to provide any solutions to the indefinite issues described above. Clarification and/or amendment accompanied by relevant citation(s) from the specification and/or teaching references are required. Any inquiry concerning this communication should be directed to Sow-Fun Hon whose telephone number is (571)272-1492. The examiner is on a flexible schedule but can usually be reached during a regular work week between the hours of 10:00 AM and 6:00 PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Aaron Austin, can be reached at (571)272-8935. The fax phone number for the organization where this application or proceeding is assigned is (571)273-8300. Information regarding the status of an application may be obtained from the Patent Center (https://patentcenter.uspto.gov). Should you have any questions on the Patent Center system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Sophie Hon/ Sow-Fun Hon Primary Examiner, Art Unit 1782
Read full office action

Prosecution Timeline

Jun 27, 2022
Application Filed
Jan 07, 2026
Non-Final Rejection mailed — §112
May 06, 2026
Response Filed
Aug 31, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12747202
PHOTOSENSITIVE RESIN COMPOSITION, CURED FILM, ELECTRONIC COMPONENT, ANTENNA ELEMENT, SEMICONDUCTOR PACKAGE, AND COMPOUND
3y 3m to grant Granted Sep 29, 2026
Patent 12739318
RESIN COMPOSITION AND DISPLAY DEVICE INCLUDING ADHESIVE MEMBER FORMED FROM THE RESIN COMPOSITION
4y 1m to grant Granted Sep 15, 2026
Patent 12736729
OPTICAL LAMINATE, POLARIZING PLATE, AND IMAGE DEVICE DISPLAY
3y 5m to grant Granted Sep 15, 2026
Patent 12687659
ANTIREFLECTION SUBSTRATE
3y 0m to grant Granted Jul 21, 2026
Patent 12674072
COATING COMPOSITIONS
4y 0m to grant Granted Jul 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
58%
Grant Probability
99%
With Interview (+64.8%)
3y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 784 resolved cases by this examiner. Grant probability derived from career allowance rate.

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