Prosecution Insights
Last updated: July 17, 2026
Application No. 18/298,238

SYSTEMS AND METHODS FOR ENDOMETRIAL ABLATION

Non-Final OA §102§103§112
Filed
Apr 10, 2023
Priority
Oct 19, 2010 — provisional 61/394,693 +4 more
Examiner
GOOD, SAMANTHA M
Art Unit
3794
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Minerva Surgical Inc.
OA Round
2 (Non-Final)
68%
Grant Probability
Favorable
2-3
OA Rounds
1y 9m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
319 granted / 469 resolved
-2.0% vs TC avg
Moderate +11% lift
Without
With
+11.1%
Interview Lift
resolved cases with interview
Typical timeline
5y 0m
Avg Prosecution
17 currently pending
Career history
501
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
75.7%
+35.7% vs TC avg
§102
9.2%
-30.8% vs TC avg
§112
8.7%
-31.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 469 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. 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 § 2146 et seq. 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 filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual 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/apply/applying-online/eterminal-disclaimer. Claims 2-21 are rejected on the grounds of nonstatutory double patenting as being unpatentable over claims 1-23 of U.S. Patent No. 10,758,300. Claim 2-21 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-23 of U.S. Patent No. 10,758,300 in view of Truckai et al (2002/0022870). Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of the ‘300 patent teach the claims of the application except for actuating an inflation source to further expand the energy-delivery surface in the uterine cavity in a direction transverse to the lateral direction. Truckai et al teaches an analogous method for performing endometrial ablation comprising actuating an inflation source (40) to further expand the energy-delivery surface in the uterine cavity in a direction transverse to the lateral direction (paragraphs 0065, 0083, 0085, 0087 and 0094-0098; Figures 8-11). Truckai et al teaches that the distal end would be inflated by introduction of an inflation medium such as air into the balloons (52) via a port similar to port 38 using an apparatus similar to the suction/insufflation apparatus 40 (paragraph 0087). Truckai et al teaches that the balloons (52) are a potential addition to the structure of the 12 (paragraphs 0085 and 0087). Furthermore, Truckai et al teaches that carbon dioxide gas is introduced into the tube 17 via the port 38 (paragraph 0094; Figure 6) and then expands the distal end as shown in Figures 9-10 as discussed in paragraph 0095. Paragraph 0099 discusses that after the positioning is determined to be proper the insufflation is terminated, which means that immediately after the metal frame is expanded the inflation source is still being actuated to further expand the energy-delivery surface in the uterine cavity in a direction transverse to the lateral direction. It would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the method for performing endometrial ablation, as taught by the ‘300 patent, to actuate an inflation source to further expand the energy-delivery surface in the uterine cavity in a direction transverse to the lateral direction, as taught by Truckai et al, in order to add structural integrity to the electrode carrying means when it is deployed within the body (paragraph 0085) and to achieve good contact with the endometrium (paragraphs 0094-0098; Figures 8-11). Claim Rejections - 35 USC § 112 Claim 5 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 5 recites the limitation "in a first plane" in line 2 and “in a direction generally transverse to the first plane” in lines 3-4 of the claim. There is insufficient antecedent basis for this limitation in the claim in light of the recitation of “in a lateral direction” in line 5 of claim two and “in a direction transverse to the lateral direction” in line 7 of claim two. It is not clear if claim 5 is claiming additional directions or if they are referring to the newly amended directions. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of pre-AIA 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: 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 2-9, 13, 16-19 and 21 are rejected under pre-AIA 35 U.S.C. 102(b) as being anticipated by Truckai et al (2002/0022870). Referring to claims 2-4, 16 and 21, Truckai et al teaches a method for performing endometrial ablation, comprising: introducing a probe working end into a patient's uterine cavity (paragraph 0079; Figures 6 and 7), the working end comprising a compliant energy-delivery surface (12) (paragraphs 0064-0067; Figures 1-11 and 20) and an expandable-contractible metal frame (15/19) moveable from a linear configuration to an expanded triangular shape and having one or more spring elements (15/19) (paragraphs 0059-0060, 0081-0082 and 0086; Figures 1-11); actuating the expandable-contractible metal frame (15/19) from its linear configuration to its expanded triangular shape in order to expand the energy-delivery surface (12) within the uterine cavity in a lateral direction (paragraphs 0059-0060, 0079, 0081-0082, 0086 and 0094-0098; Figures 6-11); actuating an inflation source (40) to further expand the energy-delivery surface (12 using balloons 52) in the uterine cavity in a direction transverse to the lateral direction (paragraphs 0065, 0081-0085, 0087 and 0094-0098; Figures 5A-11 and 20) and delivering energy from or through the energy-delivery surface (12) to cause endometrial ablation (paragraphs 0067-0071 and 0094-0106). Referring to claim 5, Truckai et al teaches wherein the expandable-contractible metal frame (15/19) expands the compliant energy-delivery surface (12) in a first plane and the inflation expands the compliant energy-delivery surface (12) in a direction generally transverse to the first plane (paragraphs 0065, 0079, 0081-0083, 0085, 0087 and 0094-0098; Figures 5A-11 and 20). Referring to claims 6 and 17, Truckai et al teaches wherein the energy is delivered by at least one electrode (14) carried by the compliant energy-delivery surface (12) (paragraph 0057, 0085 and 0101; Figures 1-19C). Referring to claims 7 and 18, Truckai et al teaches wherein the energy is delivered by bipolar electrodes (14) carried by the compliant energy-delivery surface (paragraph 0057). Referring to claims 8 and 19, Truckai et al teaches wherein the energy is delivered by conductive heating the compliant energy-delivery surface (paragraphs 0067-0077 and 0105). Referring to claim 9, Truckai et al teaches wherein the inflation source (40) delivers an inflation pressure to the working end of at least 20 mmHg (paragraph 0093). Referring to claim 13, Truckai et al teaches wherein the compliant energy-delivery surface (12) is expanded in one stage by the expandable-contractible metal frame (15/19) and in a separate stage by the inflation source (40) (paragraphs 0065, 0081-0085, 0087 and 0094-0098; Figures 5A-11 and 20). It is noted that the claim only requires that these stages are separate but does not claim which stage occurs first. Claim Rejections - 35 USC § 103 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 10-12, 14-15 and 20 are rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over Truckai et al (2002/0022870) as applied to claims 2 and 16 above, and further in view of Stern et al (6,041,260). Referring to claims 10 and 20, Truckai et al teaches wherein the working end comprises an inflation chamber (52) wherein a circulating gas stream within the inflation chamber is maintained at least 20 mmHg above ambient pressure (paragraphs 0065, 0081-0085, 0087 and 0108), however fails to expressly teach an inflation chamber surrounded by a thin wall elastomeric membrane. Stern teaches an endometrial ablation method that utilizes an elastomer for member 14 for the purpose of effecting contact with the endometrial lining to be destroyed (abstract). It would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the inflation chamber, as taught by Truckai et al, to be surrounded by a thin walled elastomeric membrane, as taught by Stern et al, in order to effect contact with the endometrial lining to be destroyed (abstract). Referring to claims 11 and 12, the modified Truckai reference teaches wherein the compliant energy-delivery surface (12) circumscribes the inflation chamber (52) and wherein the compliant energy-delivery surface (12) further circumscribes the expandable-contractible metal frame (15/19) (paragraphs 0065, 0079, 0081-0082, 0087 and 0094-00108; Figures 1-11). Referring to claim 14, the modified Truckai reference teaches the compliant energy-delivery surface comprises a thin-walled elastomer (Col. 5, lines 9-30 of Stern). It would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the inflation chamber, as taught by Truckai et al, to be surrounded by a thin walled elastomeric membrane, as taught by Stern et al, in order to effect contact with the endometrial lining to be destroyed (abstract). Referring to claim 15, the modified Truckai reference teaches discloses the claimed invention except for that the elastomer is silicone. It would have been obvious to one having ordinary skill in the art at the time the invention was made to modify the elastomer to be silicone, since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 125 USPQ 416. Response to Arguments New grounds of rejection have been made, however applicant's arguments filed February 13, 2026 have been fully considered but they are not persuasive. Truckai et al teaches that the energy-delivery surface (12) can further include a pair of inflatable balloons (52) as shown in Figure 20 (paragraph 0087) and states that “it is most desirable for the electrodes 14 on the surface of the electrode carrying means 12 to be held in contact with the interior surface of the organ to be ablated, the electrode carrying means 12 may be provide to have additional components inside it that add structural integrity to the electrode carrying means when it is deployed within the body” (paragraph 0085). Therefore, Truckai et al teaches actuating the expandable-contractible metal frame (15/19) from its linear configuration to its expanded triangular shape in order to expand the energy-delivery surface (12) within the uterine cavity in a lateral direction (paragraphs 0059-0060, 0079, 0081-0082, 0086 and 0094-0098; Figures 6-11) and actuating an inflation source (40) to further expand the energy-delivery surface (12 using balloons 52) in the uterine cavity in a direction transverse to the lateral direction Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMANTHA M GOOD whose telephone number is (571)270-7480. The examiner can normally be reached Mon to Wed, 7am to 3pm. 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, Joseph Stoklosa can be reached at 571-272-1213. 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. /SAMANTHA M GOOD/ Examiner, Art Unit 3794 /MICHAEL F PEFFLEY/ Primary Examiner, Art Unit 3794
Read full office action

Prosecution Timeline

Apr 10, 2023
Application Filed
Nov 20, 2025
Non-Final Rejection mailed — §102, §103, §112
Feb 13, 2026
Response Filed
Jun 17, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12678213
METHOD FOR MONITORING A HIGH RESISTANCE CONDITION AT AN ELECTROSURGICAL GENERATOR, ELECTROSURGICAL GENERATOR AND ELECTROSURGICAL GENERATOR SYSTEM
3y 3m to grant Granted Jul 14, 2026
Patent 12642555
METHODS OF TREATING A VERTEBRAL BODY
3y 9m to grant Granted Jun 02, 2026
Patent 12642571
MULTIPLEXED HAND SWITCHES FOR USE WITH ELECTROSURGICAL GENERATORS
3y 10m to grant Granted Jun 02, 2026
Patent 12636061
ELECTROSURGICAL GENERATOR AND SYSTEM
4y 10m to grant Granted May 26, 2026
Patent 12636063
MOTION SENSING ELECTROSURGICAL DEVICES
4y 0m to grant Granted May 26, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

2-3
Expected OA Rounds
68%
Grant Probability
79%
With Interview (+11.1%)
5y 0m (~1y 9m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 469 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month