Prosecution Insights
Last updated: August 16, 2026
Application No. 18/884,325

LEAKAGE DETECTION SYSTEM FOR OSTOMY APPLIANCE

Non-Final OA §DP
Filed
Sep 13, 2024
Priority
Jun 14, 2019 — provisional 62/861,508 +4 more
Examiner
TOWNSEND, GUY K
Art Unit
Tech Center
Assignee
Hollister Incorporated
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
536 granted / 722 resolved
+14.2% vs TC avg
Strong +26% interview lift
Without
With
+25.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
25 currently pending
Career history
732
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
50.3%
+10.3% vs TC avg
§102
22.7%
-17.3% vs TC avg
§112
15.3%
-24.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 722 resolved cases

Office Action

§DP
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 . Information Disclosure Statement The information disclosure statement(s) (IDSs) submitted on 12/11/24; 12/11/24, 5/1/25, 6/20/25, and 1/6/26 is/are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement(s) is/are being considered by the examiner. Status of the Claims Claims 1-21 are pending in the application. Reasons for Allowable Subject Matter Claims 1-21 are considered allowable over the prior art of record, subject to the Non-Statutory Double Patenting rejection presented below. The following is an examiner’s statement of reasons for allowable subject matter: The prior art fails to teach or fairly suggest the present claims of Applicant. The closest prior art of record is Seres (US 2019/0133812 A1). PNG media_image1.png 425 473 media_image1.png Greyscale As to independent claim 1, Seres discloses an ostomy device 400 Fig.4 ([0251]-[0254];[0003]) comprising: a proximal side 408 [of adhesive layer] configured for attachment to a user (peristomal skin contacting side of adhesive layer 406 Fig.4; [0252],ll.2); a distal side opposite to the proximal side 408 (Fig.4,14A multiple layers of the device; [0251],ll.1-3;[0003]-[0005] (proximal side 408 Fig.4) a leakage detection sensor 200 (sensor layer 200; Fig.4; [0251],ll.1-2) comprising electrically conductive circuitry 202 (sensors 202; Fig.4; [0253],ll.6) supported on a support layer 404 (encapsulation sheets 404 [0253]), wherein the leakage detection sensor 200 is configured to detect ostomy effluent by detecting a change in resistance in the electrically conductive circuitry ([0057]; [0212]); wherein the ostomy device is an ostomy accessory configured to be attached to an ostomy appliance Fig.4 ([0251]-[0254];[0003]). However, Seres fails to teach or fairly suggest the combination of wherein: the ostomy device as ostomy accessory includes an adhesive barrier; wherein the distal side [of the ostomy device] is attached to a proximal side of the adhesive barrier. It would have not have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have modified the ostomy device of Seres to further include the ostomy device as ostomy accessory includes an adhesive barrier; wherein the distal side [of the ostomy device] is attached to a proximal side of the adhesive barrier, and one of skill would not have been motivated to do so, where Seres fails to teach or fairly suggest these elements, and does not provide any motivation to do so. Double Patenting Non Statutory Obviousness Type Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP §§ 706.02(l)(1) - 706.02(l)(3) for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to: www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 1-21 are rejected on the ground of nonstatutory double patenting over claims 1-20 of US Patent No. 12,161,578 B2 (‘578) (Issued from parent application 17/616950). As to Claims 1-21, claims 1-20 of ‘578 teach or suggest the claimed delivery and fluid storage bridge, as follows (with claim dependencies shown in paratheses, e.g., 3(/2/1) as claim 3 incorporating claims 1 and 2): Claim 1 2 3 4 5 6 7 8 9 10 11 12 ‘578 1, 2 (/1) 1 2 (/1) 2 (/1) 3 (/2 /1) 4 (/2 /1) 5 (/4 /2 /1) 6 (/5 /4 /2 /1) 7 (/3 /2 /1) 8 (/3 /2 /1) 1 9 (/1) Claim 13 14 15 16 17 18 19 20 21 ‘578 10 (/9 /1) 11 (/10 /9 /1) 14 (/1) and 11 (/10 /9 /1) 5 (/4 /2 /1) and 6 (/5 /4 /2 /1) 2 (/1) 1 1 1 1 The differences between present claims and the claims of ‘578 claims do not identically recite each element of current claims (e.g., using substantially similar but not identical terms; different elements are in different claims; and/or different combinations of elements). However, the ‘578 claims teach or suggest each element of the current claims, as listed above, such that the present claims would have been obvious over the ‘578 claims to one of ordinary skill in the art at the time of the present invention. A two-way test is not to be applied in the present cases as Applicant could have filed the claims in a single application and there was no administrative delay. In re Berg, 46 USPQ2d 1226 (Fed. Cir. 1998) (“The two-way exception can only apply when the applicant could not avoid separate filings, and even then, only if the PTO controlled the rates of prosecution to cause the later filed species claims to issue before the claims for a genus in an earlier application . . . In Berg’s case, the two applications could have been filed as one, so it is irrelevant to our disposition who actually controlled the respective rates of prosecution.”). In the absence of administrative delay, a one-way test is appropriate. In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993). Unless the record clearly shows administrative delay by the Office and that applicant could not have avoided filing separate applications, the examiner may use the one-way obviousness determination and shift the burden to applicant to show why a two-way obviousness determination is required. One would be motivated to provide each element of the present claims from the ‘578 claims, as they both relate to the same type of device with the same elements for the same purpose and function in the same field of endeavor. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant’s disclosure. The references provided on the attached PTO Form 892 are considered relevant to Applicants’ disclosure and are cited to show further the general state of the art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to: GUY K. TOWNSEND whose telephone number is (571) 270-3689. The examiner can normally be reached Mon. - Fri., 11 am to 6 pm Eastern Time. The direct fax number is (571) 270-4689. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, REBECCA EISENBERG, can be reached on 571-270-5879. 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). 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. /GUY K TOWNSEND/Primary Examiner, Art Unit 3781
Read full office action

Prosecution Timeline

Sep 13, 2024
Application Filed
Jul 14, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12702580
Ostomy appliance
3y 3m to grant Granted Aug 11, 2026
Patent 12702804
Ureteral Stent
2y 8m to grant Granted Aug 11, 2026
Patent 12702579
CONDUITS INCLUDING AT LEAST ONE CONDUIT POROUS MATERIAL
2y 10m to grant Granted Aug 11, 2026
Patent 12691014
Diaper for Structurally Isolating Urine Matter from Fecal Matter
3y 5m to grant Granted Jul 28, 2026
Patent 12691209
MOLDED OR EXTRUDED FLUID COLLECTION DEVICES, AND RELATED SYSTEMS AND METHODS
2y 5m to grant Granted Jul 28, 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
74%
Grant Probability
99%
With Interview (+25.5%)
3y 0m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 722 resolved cases by this examiner. Grant probability derived from career allowance rate.

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