Prosecution Insights
Last updated: April 19, 2026
Application No. 18/521,674

MOISTURE BARRIER MATERIAL

Non-Final OA §103
Filed
Nov 28, 2023
Examiner
MUSSER, BARBARA J
Art Unit
1746
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Nitto Denko Corporation
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
98%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
591 granted / 834 resolved
+5.9% vs TC avg
Strong +27% interview lift
Without
With
+27.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
28 currently pending
Career history
862
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
47.6%
+7.6% vs TC avg
§102
18.2%
-21.8% vs TC avg
§112
27.4%
-12.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 834 resolved cases

Office Action

§103
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. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis ( i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if 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 of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim (s) 1- 6, 8 -13, and 1 5 -20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Seth et al.(US Publication 2005/0196590) in view of Hoerner et al.(US Patent 4,824,506) and Muller et al.(EP 2027988A1) Regarding claims 1, 2, 9, 16, and 17, Seth et al. discloses a method of making a moisture barrier comprising thermoform ing a thermoplastic sheet to a given shape, coating it with an adhesive, and applying a liner to the adhesive. ([0024]-[0025];[0043]) The reference does not disclose the specifics of the thermoforming, though it is clear that that different size structures are intended to be covered by the shaped barrier.([0006]-[0007]) Hoerner et al. discloses that in thermoforming, the sheet is shaped by inserting a die into a heated sheet so it forms to the die shape. (Figure 3A-3C) Hoerner et al. does not disclose how the die is formed. Muller et al. discloses it is known to custom make articles by obtaining three-dimensional data based on a desired structure, converting it into coordinate data, and creating a thermoforming die based on the three-dimensional data.([0051]-[0056]) It would have been obvious to one of ordinary skill at the time of filing to make a shaped moisture barrier by inserting a die into a sheet and shaping it to the die since this is a well-known and conventional method of thermoforming as taught by Hoerner et al.(Figure 3A-3C) and to make the die for the thermoforming by determining a three-dimensional shape to cover the area desired to be protected and making a thermoforming die to that shape since Muller et al. teaches making a custom thermoforming die based on obtaining data for a three-dimensional structure and forming a thermoforming die allows formation of custom elements.(Abstract) Regarding claims 3 , 10, and 18 , Hoerner et al. discloses it is known in general in thermoforming to use vacuum to pull the sheet onto the die and it would have been obvious for this reason.(Col. 1, ll. 60-64) Regarding claims 4 , 11, and 19 , Hoerner et al. discloses it is known in general in thermoforming to cool the sheet after thermoforming and it would have been obvious for this reason.(Claim 1) While it does not explicitly state the cooling is to below the temperature at which the material is thermoformable, the purpose of cooling the sheet is to remove it from the die without it losing its shape, i.e. after it is below thermoforming temperature. Regarding claims 5, 12, and 20, Seth et al. disclose applying the adhesive and liner before thermoforming. [0030] Regarding claims 6 and 13, Seth et al. discloses the adhesive can be a hot melt.[0034] Regarding claims 8 and 15, the references do not disclose the specific thicknesses of the layers. However a determination of the thicknesses of the layers is within the ability of one of ordinary skill in the art to determine absent unexpected results. Claim(s) 7 and 1 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Seth et al., Hoerner et al., and Muller et al. as applied to claim s 1 and 9 above, and further in view of Muta et al.(US Publication 2013/0052461) . The references cited above do not disclose the adhesive containing a flame retardant. Muta et al. discloses a moisture barrier for similar applications as Seth et al., i.e. to protect elements on the floor of a building from material applied on top of them which contains a flame retardant in the adhesive.[0007] It would have been obvious to one of ordinary skill at the time of filing to include a flame retardant in the adhesive of Seth et al., Hoerner et al., and Muller et al. since Muta et al. is directed to a similar structure and indicates the adhesive includes a flame retardant[0007] and since building materials are often required to include flame retardants. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FILLIN "Examiner name" \* MERGEFORMAT BARBARA J MUSSER whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)272-1222 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT 7:30-4:30 M-Th; 7:30-3:30 second Fridays . 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. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, FILLIN "SPE Name?" \* MERGEFORMAT Michael Orlando can be reached at FILLIN "SPE Phone?" \* MERGEFORMAT 571-270-5038 . The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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. FILLIN "Examiner Stamp" \* MERGEFORMAT BARBARA J. MUSSER Primary Examiner Art Unit 1746 /BARBARA J MUSSER/ Primary Examiner, Art Unit 1746
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Prosecution Timeline

Nov 28, 2023
Application Filed
Dec 18, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12575978
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2y 5m to grant Granted Mar 17, 2026
Patent 12565029
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2y 5m to grant Granted Feb 24, 2026
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
71%
Grant Probability
98%
With Interview (+27.3%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 834 resolved cases by this examiner. Grant probability derived from career allow rate.

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