Prosecution Insights
Last updated: August 16, 2026
Application No. 18/890,929

System, Method, and Apparatus for Monitoring, Regulating, or Controlling Fluid Flow

Non-Final OA §102§103§DOUBLEPATENT§DP
Filed
Sep 20, 2024
Priority
Dec 21, 2011 — CIP of PCTUS2011066588 +19 more
Examiner
BARBEE, MANUEL L
Art Unit
2857
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
DEKA Products Limited Partnership
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
755 granted / 924 resolved
+13.7% vs TC avg
Moderate +14% lift
Without
With
+14.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 12m
Avg Prosecution
33 currently pending
Career history
959
Total Applications
across all art units

Statute-Specific Performance

§101
26.2%
-13.8% vs TC avg
§103
37.1%
-2.9% vs TC avg
§102
21.7%
-18.3% vs TC avg
§112
12.3%
-27.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 924 resolved cases

Office Action

§102 §103 §DOUBLEPATENT §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 . Claim Objections Claim 44 is objected to because of the following informalities: Online 2 of claim 44, after “forming”, insert --at--. Appropriate correction is required. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 42-47 and 49 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by US Patent Application Publication 2013/0085443 to Lowery et al. (Lowery). Claim 42 With regard to a fluid chamber; Lowery teaches a drip chamber (Fig. 1, drip chamber 12; pars. 41, 44). With regard to an image sensor positioned to capture an image of at least a portion of the fluid chamber; Lowery teaches a camera to capture an image of a drop within the drip chamber (pars. 41, 42). With regard to a processor operatively coupled to the image sensor to receive data corresponding to the image captured by the image sensor, the image being a plurality of pixels, the processor being configured to determine a characteristic of the plurality of pixels; Lowery teaches estimating the volume of a drop by counting the pixels that constitute the drop (pars. 42-44). Claim 43 Lowery teaches that the fluid chamber is a drip chamber (Fig. 1, drip chamber 12). Claim 44 Lowery teaches that the processor is configured to determine a baseline of a fluid drop forming an opening of the drip chamber (par. 44). Claim 45 Lowery teaches that the processor is further configured to determine an area of interest, the area of interest being a subset of the plurality of pixels (pars. 44, 45, considers drop and splash effects corresponding to an area or region of interest, which is a subset of the pixels in the image). Claim 46 Lowery teaches that the processor is configured to determine a baseline, and the area of interest is determined at least in part based on comparison with the baseline (pars. 44, 45). Claim 47 Lowery teaches that the baseline is a predetermined group of pixels (par. 44). Claim 49 Lowery teaches that the baseline is generated based on at least one fiducial markers disposed within the fluid chamber (par. 48; Figs. 3A, 3B, common elements in each image). 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) 59 and 60 is/are rejected under 35 U.S.C. 103 as being unpatentable over Lowery in view of US Patent No. 5,612,890 to Strasser et al. (Strasser). Claim 59 Lowery teaches all the limitations of claim 42 upon which claim 59 depends. Lower does not teach that the flow meter is configured to be remotely controlled by a monitoring client. Strasser teaches a remote controller that sends a job to a flow meter (col. 17, lines 36-46). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the flow rate controller, as taught by Lowery, to include a remote controller, as taught by Strasser, because then the flow meter could have been controlled from other locations. Claim 60 Lower teaches that the monitoring client is configured to update a treatment programmed on the flow meter based on an electronic medical records database (pars. 75, 77). 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 42-47 and 59 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 21, 23, 37 and 40 of U.S. Patent No. 10,876,868. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘868 patent claims teach all the limitations of claims 42-47 and 59 of the present application. The claims of the present application correspond to the claims of the ‘868 application as follows: Present Application claim US Patent No.10,876,868 claim 42 21 43 21 44 37 45 21 46 21 47 23 59 40 . Claims 50-53, 55-58 and 60 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 28,33-35, 37-39 and 59 of U.S. Patent No. 10,876,868 in view of Lowery. The claims of the present application correspond to the claims of the ‘868 patent as follows: Present Application claim US Patent No. 10,876,868 claim 50 33 51 34 52 35 53 33 55 28 56 37 57 38 58 39 60 59 The claims of the ‘868 patent teach substantially all the limitations of the claims in the present application. With regard to claims 50-53 and 55-58, the corresponding claims do not teach the limitations of claim 44 upon which claims 50-53 and 55-58 depend. Lowery teaches that the processor is configured to determine a baseline of a fluid drop forming an opening of the drip chamber (par. 44, preprogrammed ratio of pixels-to-volume). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include a preprogrammed ratio, as taught by Lowery, because then a consistent standard for determining the ratio of the drop would have resulted in a more accurate determination of flow rate. With regard to claim 60, claim 40 of the ‘868 patent teaches all the limitations of claim 60 depends. Claim 40 of the ‘868 patent does not teach that the monitoring client is configured to update a treatment program on the flow meter based on an electric medical records database. Lowery teaches that the monitoring client is configured to update a treatment programmed on the flow meter based on an electronic medical records database (pars. 75, 77). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include updating a treatment, as taught by Lowery, because then the patient would have received more effective treatment. Claims 42-47 and 59 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 21, 24, 37 and 41 of U.S. Patent No. 10,088,346. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘346 patent claims teach all the limitations of claims 42-47 and 59 of the present application. The claims of the present application correspond to the claims of the ‘346 application as follows: Present Application claim US Patent No. 10,088,346 claim 42 21 43 21 44 37 45 21 46 21 47 24 59 41 Claims 50-58 and 60 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 27, 29, 34-36 and 38-41 of U.S. Patent No. 10,088,346 in view of Lowery. The claims of the present application correspond to the claims of the ‘346 patent as follows: Present Application claim US Patent No. 10,088,346 claim 50 34 51 35 52 36 53 34 54 27 55 29 56 38 57 39 58 40 60 41 The claims of the ‘346 patent teach substantially all the limitations of the claims in the present application. With regard to claims 50-58, the corresponding claims do not teach the limitations of claim 44 upon which claims 50-58 depend. Lowery teaches that the processor is configured to determine a baseline of a fluid drop forming an opening of the drip chamber (par. 44, preprogrammed ratio of pixels-to-volume). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include a preprogrammed ratio, as taught by Lowery, because then a consistent standard for determining the ratio of the drop would have resulted in a more accurate determination of flow rate. With regard to claim 60, claim 41 of the ‘346 patent teaches all the limitations of claim 60 depends. Claim 41 of the ‘346 patent does not teach that the monitoring client is configured to update a treatment program on the flow meter based on an electric medical records database. Lowery teaches that the monitoring client is configured to update a treatment programmed on the flow meter based on an electronic medical records database (pars. 75, 77). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include updating a treatment, as taught by Lowery, because then the patient would have received more effective treatment. Claims 42-47 and 59 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 19, 21, 32 and 36 of U.S. Patent No. 12,100,507. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘507 patent claims teach all the limitations of claims 42-47 and 59 of the present application. The claims of the present application correspond to the claims of the ‘507 application as follows: Present Application claim US Patent No. 12,100,507 claim 42 19 43 19 44 32 45 19 46 19 47 21 59 36 Claims 50-58 and 60 rejected on the ground of nonstatutory double patenting as being unpatentable over claims 26-31 and 33-36 of U.S. Patent No. 12,100,507 in view of Lowery. The claims of the present application correspond to the claims of the ‘507 patent as follows: Present Application claim US Patent No. 12,100,507 claim 50 26 51 27 52 28 53 29 54 30 55 31 56 33 57 34 58 35 60 36 The claims of the ‘507 patent teach substantially all the limitations of the claims in the present application. With regard to claims 50-58, the corresponding claims do not teach the limitations of claim 44 upon which claims 50-58 depend. Lowery teaches that the processor is configured to determine a baseline of a fluid drop forming an opening of the drip chamber (par. 44, preprogrammed ratio of pixels-to-volume). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include a preprogrammed ratio, as taught by Lowery, because then a consistent standard for determining the ratio of the drop would have resulted in a more accurate determination of flow rate. With regard to claim 60, claim 36 of the ‘507 patent teaches all the limitations of claim 60 depends. Claim 36 of the ‘507 patent does not teach that the monitoring client is configured to update a treatment program on the flow meter based on an electric medical records database. Lowery teaches that the monitoring client is configured to update a treatment programmed on the flow meter based on an electronic medical records database (pars. 75, 77). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include updating a treatment, as taught by Lowery, because then the patient would have received more effective treatment. Claims 42-46 and 59 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 35, 40, 54 and 66 of U.S. Patent No. 9,976,665. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘665 patent claims teach all the limitations of claims 42-46 and 59 of the present application. The claims of the present application correspond to the claims of the ‘665 application as follows: Present Application claim US Patent No. 9,976,665 claim 42 35 43 35 44 54 45 40 46 49 59 66 Claims 50-58 and 60 rejected on the ground of nonstatutory double patenting as being unpatentable over claims 42, 43, 45, 50-52, 54-56 and 66 of U.S. Patent No. 9,976,665 in view of Lowery. The claims of the present application correspond to the claims of the ‘665 patent as follows: Present Application claim US Patent No. 9,976,665 claim 50 50 51 51 52 52 53 42 54 43 55 45 56 54 57 55 58 56 60 66 The claims of the ‘665 patent teach substantially all the limitations of the claims in the present application. With regard to claims 50-58, the corresponding claims do not teach the limitations of claim 44 upon which claims 50-58 depend. Lowery teaches that the processor is configured to determine a baseline of a fluid drop forming an opening of the drip chamber (par. 44, preprogrammed ratio of pixels-to-volume). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include a preprogrammed ratio, as taught by Lowery, because then a consistent standard for determining the ratio of the drop would have resulted in a more accurate determination of flow rate. With regard to claim 60, claim 66 of the ‘665 patent teaches all the limitations of claim 60 depends. Claim 66 of the ‘665 patent does not teach that the monitoring client is configured to update a treatment program on the flow meter based on an electric medical records database. Lowery teaches that the monitoring client is configured to update a treatment programmed on the flow meter based on an electronic medical records database (pars. 75, 77). It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the claims of the present application, to include updating a treatment, as taught by Lowery, because then the patient would have received more effective treatment. Allowable Subject Matter Claims 48 is objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MANUEL L BARBEE whose telephone number is (571)272-2212. The examiner can normally be reached M-F: 9-5:30.. 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, Shelby A Turner can be reached at 571-272-6334. 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. /MANUEL L BARBEE/Primary Examiner, Art Unit 2857
Read full office action

Prosecution Timeline

Sep 20, 2024
Application Filed
Oct 14, 2024
Response after Non-Final Action
May 05, 2026
Non-Final Rejection mailed — §102, §103, §DOUBLEPATENT
May 21, 2026
Response Filed

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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
82%
Grant Probability
96%
With Interview (+14.3%)
2y 12m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 924 resolved cases by this examiner. Grant probability derived from career allowance rate.

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