Prosecution Insights
Last updated: April 19, 2026
Application No. 17/431,489

GLASS FILM

Non-Final OA §102§103
Filed
Aug 17, 2021
Examiner
FERGUSON, LAWRENCE D
Art Unit
1781
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Nitto Denko Corporation
OA Round
5 (Non-Final)
78%
Grant Probability
Favorable
5-6
OA Rounds
2y 10m
To Grant
92%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
769 granted / 984 resolved
+13.2% vs TC avg
Moderate +14% lift
Without
With
+13.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
26 currently pending
Career history
1010
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
49.2%
+9.2% vs TC avg
§102
19.4%
-20.6% vs TC avg
§112
15.8%
-24.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 984 resolved cases

Office Action

§102 §103
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 . DETAILED ACTION Response to Amendment 1. This action is in response to the Pre-Appeal Conference request filed September 8, 2025. Examiner regrets the untimely reopening of the case and withdraws the previous rejections to further prosecute the claimed invention. Claims 1-7 are pending in this case. Claim Rejections – 35 USC § 102(a)(1) 2. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. 3. Claims 1-4 and 6 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Enicks et al (KR 20160002911). Enicks discloses glass substrates having a thickness of less than about 100 microns (paragraph 35) where a brush may be used to scrub the surface of the glass substrate (paragraph 39) where Table 1 of the instant specification discloses using brush cleaning. Because Enicks discloses a glass substrate with the same materials as claimed and preferentially disclosed, the glass of Enicks will inherently possess the number of deposited contaminants, as in claims 1-4 and 6. Claim Rejections – 35 USC § 103 4. 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) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102 of this title, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. Patentability shall not be negatived by the manner in which the invention was made. 5. Claims 1-7 are rejected under 35 U.S.C. 103 as being unpatentable over JP 4130514 (JP ‘514). JP ‘514 discloses a cleaned glass substrate, such as Corning 7059 (paragraph 36) where the instant specification discloses using commercially available thin glass including “7059” manufacturing by Corning in paragraph 20 of the published specification. JP ‘514 includes brush scrub cleaning (paragraph 40) where Table 1 of the instant specification discloses using brush cleaning. Although JP ‘514 does not explicitly disclose the thickness of the glass film, thickness modifications involve a mere change in the size of a component. A change in size is generally recognized as being within the level of ordinary skill in the art and therefore obvious. Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert, denied, 469 U.S. 830, 225 USPQ 232 (1984) See MPEP 2144.04. JP ‘514 does not appear to explicitly teach the number of deposited contaminants on a surface of the glass or flexibility, however substantially identical materials treated in a substantially identical manner are expected to have substantially identical properties. In the present case the glass layer No. 7059 manufactured by Corning is carried out using material (glass) and process conditions which are substantially identical to those disclosed by applicants. Therefore the glass discussed above would be expected to meet the claimed number of deposited contaminants on a surface of the glass and flexibility, as in claims 1-4. Concerning claim 5, JP ‘514 discloses a cleaned glass substrate, such as Corning 7059 (paragraph 36) where the instant specification discloses using commercially available thin glass including “7059” manufacturing by Corning in paragraph 20 of the published specification. JP ‘514 includes brush scrub cleaning (paragraph 40) where Table 1 of the instant specification discloses using brush cleaning. Although JP ‘514 does not explicitly disclose the length of the glass sheet, length modifications involve a mere change in the size of a component. A change in size is generally recognized as being within the level of ordinary skill in the art and therefore obvious. Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert, denied, 469 U.S. 830, 225 USPQ 232 (1984) See MPEP 2144.04. Concerning claim 6, JP ‘514 discloses a cleaned glass substrate, such as Corning 7059 (paragraph 36) where the instant specification discloses using commercially available thin glass including “7059” manufacturing by Corning in paragraph 20 of the published specification. JP ‘514 includes brush scrub cleaning (paragraph 40) where Table 1 of the instant specification discloses using brush cleaning. Although JP ‘514 does not explicitly disclose the thickness of the glass film, thickness modifications involve a mere change in the size of a component. A change in size is generally recognized as being within the level of ordinary skill in the art and therefore obvious. Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert, denied, 469 U.S. 830, 225 USPQ 232 (1984) See MPEP 2144.04. JP ‘514 does not appear to explicitly teach the number of deposited contaminants on a surface of the glass or flexibility, however substantially identical materials treated in a substantially identical manner are expected to have substantially identical properties. In the present case the glass layer No. 7059 manufactured by Corning is carried out using material (glass) and process conditions which are substantially identical to those disclosed by applicants. Therefore the glass discussed above would be expected to meet the claimed number of deposited contaminants on a surface of the glass and flexibility. Concerning claim 7, JP ‘514 discloses a cleaned glass substrate, such as Corning 7059 (paragraph 36) where the instant specification discloses using commercially available thin glass including “7059” manufacturing by Corning in paragraph 20 of the published specification. JP ‘514 includes brush scrub cleaning (paragraph 40) where Table 1 of the instant specification discloses using brush cleaning. Although JP ‘514 does not explicitly disclose the length of the glass sheet, length modifications involve a mere change in the size of a component. A change in size is generally recognized as being within the level of ordinary skill in the art and therefore obvious. Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert, denied, 469 U.S. 830, 225 USPQ 232 (1984) See MPEP 2144.04. Claim Rejections – 35 USC § 103 6. Claims 5 and 7 are rejected under 35 U.S.C. 103 as being unpatentable over Enicks et al (KR 20160002911). Enicks is taken as above. Enicks discloses glass substrates having a thickness of less than about 100 microns (paragraph 35) where a brush may be used to scrub the surface of the glass substrate (paragraph 39). Although Enicks does not explicitly disclose the length of the glass sheet, length modifications involve a mere change in the size of a component. A change in size is generally recognized as being within the level of ordinary skill in the art and therefore obvious. Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert, denied, 469 U.S. 830, 225 USPQ 232 (1984) See MPEP 2144.04, as in claims 5 and 7. Response to Arguments 7. Applicant’s arguments of the rejection made under 35 U.S.C. 103(a) as being unpatentable over Tsukane et al. (U.S. 4,831,608) are moot based on grounds of new rejection. Conclusion 8. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Lawrence Ferguson whose telephone number is 571-272-1522. The examiner can normally be reached on Monday through Friday 9:00 AM – 5:30PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Frank Vineis, can be reached on 571-270-1547. 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 Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /LAWRENCE D FERGUSON/Examiner, Art Unit 1781
Read full office action

Prosecution Timeline

Aug 17, 2021
Application Filed
Oct 20, 2023
Non-Final Rejection — §102, §103
Mar 22, 2024
Response Filed
Jun 28, 2024
Final Rejection — §102, §103
Sep 03, 2024
Response after Non-Final Action
Sep 03, 2024
Notice of Allowance
Sep 23, 2024
Response after Non-Final Action
Jan 04, 2025
Non-Final Rejection — §102, §103
Mar 03, 2025
Interview Requested
Mar 14, 2025
Applicant Interview (Telephonic)
Mar 24, 2025
Examiner Interview Summary
Apr 08, 2025
Response Filed
Jul 02, 2025
Final Rejection — §102, §103
Sep 08, 2025
Notice of Allowance
Sep 08, 2025
Response after Non-Final Action
Oct 04, 2025
Response after Non-Final Action
Jan 06, 2026
Non-Final Rejection — §102, §103 (current)

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

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Prosecution Projections

5-6
Expected OA Rounds
78%
Grant Probability
92%
With Interview (+13.6%)
2y 10m
Median Time to Grant
High
PTA Risk
Based on 984 resolved cases by this examiner. Grant probability derived from career allow rate.

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