Prosecution Insights
Last updated: August 16, 2026
Application No. 18/292,200

ELECTRICALLY POWERED FURNACES TO HEAT A FEED AND RELATED METHODS

Non-Final OA §102§112
Filed
Jan 25, 2024
Priority
Jul 27, 2021 — EU 21187872.3 +1 more
Examiner
JENNISON, BRIAN W
Art Unit
Tech Center
Assignee
SABIC (Saudi Basic Industries Corporation)
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
12m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
1045 granted / 1455 resolved
+11.8% vs TC avg
Strong +22% interview lift
Without
With
+22.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
51 currently pending
Career history
1492
Total Applications
across all art units

Statute-Specific Performance

§101
3.8%
-36.2% vs TC avg
§103
49.7%
+9.7% vs TC avg
§102
21.1%
-18.9% vs TC avg
§112
21.2%
-18.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1455 resolved cases

Office Action

§102 §112
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 § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 2-3 are 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance: claims 2, 12 recites the broad recitation greater than or equal to 400 V, and the claim also recites greater than or equal to 10,000 V, which is the narrower statement of the range/limitation. claims 3, 13 recites the broad recitation greater than or equal to 200° C, and the claim also recites greater than or equal to 700° C, which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Claim Rejections - 35 USC § 102 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)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Mortensen et al (US 2021/0113983). Regarding claims 1-2, Mortensen discloses, Fig 1a shows a plurality of heating tubes 5, as the current flows through the structures 5 (See Paragraph [0126]) with tube being arranged in parallel meaning the fluid flow would be parallel. a plurality of electrical connections electrically connecting the plurality of heating tubes, wherein the plurality of electrical connections electrically connects the plurality of heating tubes in series; and (Fig 4 shows a plurality of electrical connections connecting the plurality of heating tubes in series. See Paragraph [0116]) an electrical power source electrically connected to the plurality of electrical connections and configured to supply a voltage to the plurality of electrical connections, the voltage being greater than or equal to 100 volts. (The power source is connected to the rails 41 and supplies a power of 792 V. See Paragraphs [0091], [0158]) Regarding claim 3, the tube 5, temperature is increased to greater than or equal to 200° C, or greater than or equal to 700° C. (See Paragraph [0047]) Regarding claim 4, the electrical resistance would vary between the tubes at some degree as no material is constructed perfectly. Applicant fails to set forth the parameters for the resistance varying throughout the tube. The same reasoning applies for claims 5 and 6. Regarding claim 7, the device is a steam furnace for cracking. (See Paragraph [0004]) Regarding claim 8, one embodiment is a steam methane reformer. (See Paragraph [0029]) Regarding claim 9, the device may also be used for hydrocarbon dehydrogenation. (See Paragraph [0029]) Regarding claim 10, pretreated feed gas (claim does not specify how the hydrocarbon is pretreated, but it would be in some manner. See Paragraph [0119], Fig 3A) Regarding claim 11-12, Mortensen discloses, Fig 1a shows a plurality of heating tubes 5, as the current flows through the structures 5 (See Paragraph [0126]) with tube being arranged in parallel meaning the fluid flow would be parallel. a plurality of electrical connections electrically connecting the plurality of heating tubes, wherein the plurality of electrical connections electrically connects the plurality of heating tubes in series; and (Fig 4 shows a plurality of electrical connections connecting the plurality of heating tubes in series. See Paragraph [0116]) an electrical power source electrically connected to the plurality of electrical connections and configured to supply a voltage to the plurality of electrical connections, the voltage being greater than or equal to 100 volts. (The power source is connected to the rails 41 and supplies a power of 792 V. See Paragraphs [0091], [0158]) Regarding claims 13 and 19, the tube 5, temperature is increased to greater than or equal to 200° C, or greater than or equal to 700° C. (See Paragraph [0047]) Regarding claim 14, the voltage would generate one temperature profile. Regarding claims 16-18, the feed is a hydrocarbon feed. (See Paragraph [0029]). Regarding claim 20, Regarding claim 10, pretreated feed gas (claim does not specify how the hydrocarbon is pretreated, but it would be in some manner. See Paragraph [0119], Fig 3A) Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN W JENNISON whose telephone number is (571)270-5930. The examiner can normally be reached M-Th 9-5. 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, Ibrahime Abraham can be reached at 571-270-5569. 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 W JENNISON/Primary Examiner, Art Unit 3761 7/19/2026
Read full office action

Prosecution Timeline

Jan 25, 2024
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §102, §112 (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
72%
Grant Probability
94%
With Interview (+22.1%)
3y 6m (~12m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1455 resolved cases by this examiner. Grant probability derived from career allowance rate.

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