Prosecution Insights
Last updated: April 19, 2026
Application No. 18/468,041

Vacuum-Assisted Treatment Device, and Related Systems and Methods

Non-Final OA §103
Filed
Sep 15, 2023
Examiner
OSINSKI, BRADLEY JAMES
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Inovio Pharmaceuticals Inc.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
3y 6m
To Grant
90%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
922 granted / 1173 resolved
+8.6% vs TC avg
Moderate +11% lift
Without
With
+11.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
46 currently pending
Career history
1219
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
45.7%
+5.7% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
18.0%
-22.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1173 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 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 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bezalel et al (US 2021/0187287) in view of Chang et al (US 2015/0088050). Regarding claim 1, Bezalel discloses a device for vacuum-assisted in vivo electroporation of tissue, comprising: a housing 112 defining a receptacle 114 and at least one opening into the receptacle (fig 1); at least one port 115 extending through the housing, wherein the at least one port is remote from the at least one opening and is connectable to a vacuum source (fig 1; ¶28), such that the at least one port is configured to communicate vacuum pressure from the vacuum source to the receptacle (¶28); a plurality of electrodes 118 positioned within the chamber (¶32). While Bezalel substantially discloses the invention as claimed, it does not disclose an insert receivable within the receptacle, the insert defining an internal chamber that is in communication with the vacuum source when the insert is received in the receptacle, the insert including: a plurality of electrodes positioned within the chamber, wherein the plurality of electrodes are configured to deliver one or more electroporation pulses to a targeted portion of tissue extending through the at least one opening and at least momentarily held in the chamber responsive to the vacuum pressure. Chang discloses a plurality of inserts (fig 16; different inserts with different apertures 634) receivable within the receptacle (fig 17), the insert defining an internal chamber that is in communication with the vacuum source when the insert is received in the receptacle (fig 17, arrows leading to 659). The different inserts allow for different types of tips to be used as needed/desired (¶134). One of ordinary skill in the art when viewing Bezalel in view of Chang would be motivated to provide a variety of different inserts with a variety of different electrode arrangements to allow for different electroporation patterns, as desired. It would have been obvious to one of ordinary skill in the art, at the time of filing, to modify Bezalel such that it comprises an insert receivable within the receptacle, the insert defining an internal chamber that is in communication with the vacuum source when the insert is received in the receptacle, the insert including: a plurality of electrodes positioned within the chamber, wherein the plurality of electrodes are configured to deliver one or more electroporation pulses to a targeted portion of tissue extending through the at least one opening and at least momentarily held in the chamber responsive to the vacuum pressure as suggested by Chang to allow for different arrangements of electrodes to be chosen, depending on the area/surface to be treated. Allowable Subject Matter Claim 2 is allowed. The examiner did not find a teaching or suggestion for modifying closest art Bezalel such that the plurality of inserts define different respective chamber diameters, in addition to the other limitations. Chang (see above) discloses a suggestion for different tip/insert types, but it is seen as impermissible hindsight to use its teachings for different sized inserts. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRADLEY JAMES OSINSKI whose telephone number is (571)270-3640. The examiner can normally be reached Monday to Thursday 9AM to 5PM. 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, Michael Tsai can be reached at (571)270-5246. 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. /BRADLEY J OSINSKI/Primary Examiner, Art Unit 3783
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Prosecution Timeline

Sep 15, 2023
Application Filed
Feb 20, 2026
Non-Final Rejection — §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

1-2
Expected OA Rounds
79%
Grant Probability
90%
With Interview (+11.1%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 1173 resolved cases by this examiner. Grant probability derived from career allow rate.

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