Prosecution Insights
Last updated: April 19, 2026
Application No. 19/302,079

TAPERED ROTARY DISC PUMP

Final Rejection §103
Filed
Aug 18, 2025
Examiner
PETERS, BRIAN O
Art Unit
3711
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Discflo Corporation
OA Round
2 (Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
2y 7m
To Grant
89%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
447 granted / 617 resolved
+2.4% vs TC avg
Strong +16% interview lift
Without
With
+16.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
39 currently pending
Career history
656
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
43.6%
+3.6% vs TC avg
§102
26.9%
-13.1% vs TC avg
§112
26.9%
-13.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 617 resolved cases

Office Action

§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 Arguments Applicant’s arguments have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Ree and Jimenez. 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) 1-6, 10-14, 16-18 and 21-26 are rejected under 35 U.S.C. 103 as being unpatentable over Ree US 9534601 in view of Jimenez US 11680578. Regarding claim 1 Ree discloses a tapered rotary disc pump (Fig. 4), comprising: a disc assembly (Fig. 7) comprising a first disc and a second disc, the first disc comprising a first inner surface and the second disc comprising a second inner surface, the first disc and second disc forming a chamber between the first disc and the second disc (Fig. 7); a plurality of standoffs (73) coupling the first disc with the second disc; and a plurality of vanes comprising a first plurality of vanes and a second plurality of vanes (71 and 72), wherein the first plurality of vanes is disposed on the first inner surface and the second plurality of vanes is disposed on the second inner surface, each of the plurality of vanes comprising: a vane inner end (radially inner end of vane) and a vane outer end (radially outer end of vane) opposite the vane inner end, the vane outer end terminating at a disc periphery of the first disc or the second disc such that the vane outer end and the disc periphery form a flush relationship (Fig. 7), wherein the vane inner end extends inwardly toward a center of the first disc or the second disc (Fig. 7), a vane leading face and a vane trailing face, the vane trailing face comprising an orthogonal configuration with a respective inner surface (Fig. 7); wherein at least one of the plurality of vanes tapers from the vane outer end toward the vane inner end (Fig. 7). However, it does not teach that the at least one of the plurality of vanes tapers from the respective inner surface toward the chamber. Jimenez teaches a disc assembly with vanes tapering from an inner surface towards a chamber (Fig. 6). Jimenez so teaches in order to improve pump efficiency (col. 5 ln. 41-42). Thus, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the vanes as taught by Ree by incorporating a taper as taught by Jimenez in order to improve pump efficiency. Regarding claim 2, The combination further teaches that each of the plurality of vanes tapers from the vane outer end toward the vane inner end (Ree, Fig. 7), and further wherein each of the plurality of vanes tapers from the respective inner surface toward the chamber (Jimenez, Fig. 6). Regarding claim 3, Ree further discloses that the first disc is in parallel alignment with the second disc (Fig. 7). Regarding claim 4, Ree further discloses that the first disc is concentrically aligned with the second disc (Fig. 7). Regarding claim 5, Ree further discloses that the first plurality of vanes comprises a first quantity and the second plurality of vanes comprises a second quantity, wherein the first quantity equals the second quantity (Fig. 7). Regarding claim 6, Ree further discloses that each of the first plurality of vanes is aligned with one of the second plurality of vanes such that two opposing vanes are at equal radial positions during rotation of the tapered rotary disc pump (Fig. 7). Regarding claim 10, Ree further discloses that each of the plurality of standoffs is orthogonal to the first disc and the second disc (Fig. 7). Regarding claim 11, Jinenez further teaches that the vane leading face (64 adjacent to 62,72) further comprising a convex portion and a concave portion (Fig. 5), wherein the concave portion extends from the respective inner surface toward the convex portion, and the convex portion extends from the concave portion to the vane trailing face (Fig. 5). Regarding claim 12, see claim 1. Regarding claim 13, see claim 2. Regarding claim 14, see claim 5. Regarding claims 16 and 17, see claim 1. Regarding claim 18, see claim 6. Regarding claims 21, 23 and 25, the Ree further discloses that the respective inner surface comprises a first boundary edge and a second boundary edge formed by adjacent vanes, wherein the first boundary edge and the second boundary edge are each substantially linear (Fig. 7). Regarding claims 22, 24 and 26, Ree further discloses that the first boundary edge and the second boundary edge converge towards a center portion of the first disc or the second disc (Fig. 7). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN O PETERS whose telephone number is (571)272-2662. The examiner can normally be reached Tue-Sat, 12:00pm-10pm EST. 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, Eugene Kim can be reached at (571) 272-4463. 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. /BRIAN O PETERS/Primary Examiner, Art Unit 3745
Read full office action

Prosecution Timeline

Aug 18, 2025
Application Filed
Nov 01, 2025
Non-Final Rejection — §103
Feb 11, 2026
Response Filed
Feb 25, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595806
EFFICIENT FAN ASSEMBLY
2y 5m to grant Granted Apr 07, 2026
Patent 12595809
HEAT COLLECTING PUMP AND WASHING APPLIANCE HAVING THE SAME
2y 5m to grant Granted Apr 07, 2026
Patent 12590589
RADIALLY COMPRESSIBLE AND EXPANDABLE ROTOR FOR A FLUID PUMP
2y 5m to grant Granted Mar 31, 2026
Patent 12584415
TURBINE ENGINE SEAL FOR TURBINE ENGINES
2y 5m to grant Granted Mar 24, 2026
Patent 12553412
HYDRAULIC SYSTEM FOR PITCH ANGLE ADJUSTMENT OF A ROTOR BLADE OF A WIND TURBINE AND WIND TURBINE WITH SUCH A HYDRAULIC SYSTEM
2y 5m to grant Granted Feb 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
72%
Grant Probability
89%
With Interview (+16.5%)
2y 7m
Median Time to Grant
Moderate
PTA Risk
Based on 617 resolved cases by this examiner. Grant probability derived from career allow 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