Prosecution Insights
Last updated: July 17, 2026
Application No. 17/048,273

ELECTRODE BOILER SYSTEM

Final Rejection §103
Filed
Oct 16, 2020
Priority
Apr 16, 2018 — RE 10-2018-0044118 +1 more
Examiner
MILLS JR., JOE E
Art Unit
3761
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
No Eul Kim
OA Round
4 (Final)
72%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
291 granted / 402 resolved
+2.4% vs TC avg
Strong +16% interview lift
Without
With
+15.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
33 currently pending
Career history
457
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
77.4%
+37.4% vs TC avg
§102
8.4%
-31.6% vs TC avg
§112
10.5%
-29.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 402 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 . Response to Amendment This office action is responsive to the amendment filed on 03/05/2026. As directed by the amendment: claim(s) 12 has/have been amended; claim(s) 14, 18, AND 20-22 has/have been cancelled and no new claim(s) has/have been added. Thus, claims 12-13 and 15-17 are presently pending in this application. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 12-13 and 15-17 is/are rejected under 35 U.S.C. 103 as being unpatentable over KR10- 1112122 in view of KR10-1541716, Shirakura et al (US 2008/0029396), Shin et al (US 2015/0176847), and Holtzapple et al (US 2012/0118722). KR10-1112122 discloses an electrode boiler system (100) comprises a body portion (20), a plurality of electrodes (22) in the body portion (20) and which contacts electrolyte (Figure 2), a first flow path (L1) through which electrolyte flows out after being heated (abstract), a second flow path (L3) spaced from first flow path (L1) through which electrolyte flows into body portion (Figure 2), a control portion to control current applied to the electrode portion (pressure sensor S2 and controlling a power supply unit (10) when pressure is high; claim1, Figure 2), a receiving portion (30) between first flow path (L1) and second flow path (L3), a heat exchange portion (50) between first flow path (L1) and second flow path (L3) wherein electrolyte flows into heat exchange portion through first flow path (L1) and is circulated to body portion (20) via second flow path (L3; para. 0038, claim 1, Figure 2), a heat receiving portion adjacent heat exchange portion and receiving heat from the electrolyte (para. 0031, Figure 2), a pump (P), a supplementary portion (L4) for supplementing the electrolyte (claim 1, Figure 1), a temperature sensing portion for sensing a temperature of electrolyte wherein control portion to use information about sensed temperature (para. 0043-0044, claim 1, Figure 2) KR10-1112122 does not disclose a vent portion, an insulating material and an anti-static Teflon resin layer formed on body, first or second flow path or . KR10-154176 discloses a vent portion (132) and an insulation (120). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the invention, to have included the vent and insulation of KR10-154176 in the electrode boiler of KR10-1112122 because, a vent allows the steam pressure to be controlled more efficiently insulation allows temperature to be controlled more efficiently. While neither KR10-1112122 nor KR10-154176 discloses a first or second Teflon resin layer situated in the first or second flow path portions. Nonetheless, Shirakura teaches a first or second Teflon resin layer situated in the first or second flow path portions ([0156] --- “Resin materials made of acrylic or Teflon (registered trademark), or non-iron materials such as titanium or nickel were used for all of the liquid contacting portions such as the small testing vessel, an electrolyte supply pipe, and a pump; thereby, the iron mixed in the catholyte was made to be only the iron of the iron-containing water.”). 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 electrode boiler system of KR10-1112122 by incorporating the Teflon materials lining the first and second flow paths for the benefit of protecting the flow paths from corrosion and environmental damage. Furthermore, KR10-1112122 nor KR10-154176 discloses a temperature sensing portion connected to the second flow path portion and sensing a temperature of the electrolyzed water in the second flow path portion; wherein when a temperature measured by the temperature sensing portion exceeds a first threshold, the current applied to the electrode portion is decreased, and when the temperature measured by the temperature sensing portion is less than a second threshold, the current applied to the electrode portion is increased. Nonetheless, Shin teaches a temperature sensing portion (120) connected to the second flow path portion and sensing a temperature of the electrolyzed water in the second flow path portion; wherein when a temperature measured by the temperature sensing portion exceeds a first threshold, the current applied to the electrode portion is decreased, and when the temperature measured by the temperature sensing portion is less than a second threshold, the current applied to the electrode portion is increased (para. 0086). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the invention, to have included the temperature sensor and temperature control of Shin in the electrode boiler of KR10-1112122 because a temperature sensor allows for accurate control of the water temperature. Furthermore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have a supplementary portion connected to the second flow path portion, situated downstream from the heat exchange portion, since it has been held that rearranging parts of an invention involves only routine skill in the art (The electrolyte replenishment line is controlled by a controller and a sensor that determines when more electrolytes need be introduced into the system. The electrolyte replenishment line being upstream or downstream of the heat exchanger would not affect how or why electrolytes are introduced into the system.) . MPEP 2144.04 V. C. While neither KR10-1112122 nor KR10-154176, Shirakura, or Shin discloses the heat exchange portion having a straight boundary wall separating the heat exchange portion from a heat receiving portion, the heat receiving portion having an inlet section through which water or gas enters the heat receiving portion and an outlet section through which the water or gas exits the heat receiving portion; wherein the straight boundary wall includes a fourth insulating Teflon resin layer. Nonetheless, Holtzapple teaches the heat exchange portion having a straight boundary wall (Shown in the figure below) separating the heat exchange portion from a heat receiving portion, the heat receiving portion having an inlet section (Shown in the figure below) through which water or gas enters the heat receiving portion and an outlet section (Shown in the figure below) through which the water or gas exits the heat receiving portion; wherein the straight boundary wall (Shown in the figure below) includes a fourth insulating Teflon resin layer ([0154] lines 3-5 ---"The heat exchanger has a hydrophobic coating made from nickel-Teflon, which promotes dropwise condensation and resists fouling.”). 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 electrode boiler system of KR10-1112122, KR10-154176, Shirakura, and Shin by incorporating the wall coated with Teflon as taught by Holtzapple for the benefit of promoting high heat transfer coefficients, dropwise condensation, and fouling resistance. PNG media_image1.png 595 758 media_image1.png Greyscale Response to Arguments Applicant’s arguments, see pages 5-6, filed 03/05/2026, with respect to the rejection(s) of claim(s) 12-13 and 15-17 under 35 U.S.C. § 103 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 Holtzapple et al (US 2012/0118722). Applicant argues that the cited prior art does not teach the heat exchange portion having a straight boundary wall separating the heat exchange portion from a heat receiving portion, the heat receiving portion having an inlet section through which water or gas enters the heat receiving portion and an outlet section through which the water or gas exits the heat receiving portion; wherein the straight boundary wall includes a fourth insulating Teflon resin layer. Examiner respectfully agrees. However, newly cited prior art reference Holtzapple does teach the heat exchange portion having a straight boundary wall separating the heat exchange portion from a heat receiving portion, the heat receiving portion having an inlet section through which water or gas enters the heat receiving portion and an outlet section through which the water or gas exits the heat receiving portion; wherein the straight boundary wall includes a fourth insulating Teflon resin layer. See the rejection above. 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 JOE E MILLS JR. whose telephone number is (571)272-8449. The examiner can normally be reached M-F 8-5. 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 ttps://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. /JOE E MILLS JR./ Examiner, Art Unit 3761 /IBRAHIME A ABRAHAM/Supervisory Patent Examiner, Art Unit 3761
Read full office action

Prosecution Timeline

Show 3 earlier events
Mar 04, 2024
Response after Non-Final Action
Oct 18, 2024
Response Filed
Mar 18, 2025
Final Rejection mailed — §103
Jul 18, 2025
Request for Continued Examination
Jul 28, 2025
Response after Non-Final Action
Oct 06, 2025
Non-Final Rejection mailed — §103
Mar 05, 2026
Response Filed
Jun 24, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12667139
AEROSOL-PRODUCING DEVICE AND CONTROL METHOD
4y 2m to grant Granted Jun 30, 2026
Patent 12649181
METHOD OF JETTING PRINT MATERIAL USING EJECTOR DEVICES AND METHODS OF MAKING THE EJECTOR DEVICES
1y 11m to grant Granted Jun 09, 2026
Patent 12636721
WIRE ELECTRODE FOR WIRECUT ELECTRICAL DISCHARGE MACHINING WITH CARBONACEOUS SURFACE LAYER AND THE PREPARATION METHODS THEREOF
4y 6m to grant Granted May 26, 2026
Patent 12618541
APPARATUS FOR DEFROSTING A VEHICLE LIGHT
4y 4m to grant Granted May 05, 2026
Patent 12437968
PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD
4y 1m to grant Granted Oct 07, 2025
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

5-6
Expected OA Rounds
72%
Grant Probability
88%
With Interview (+15.5%)
3y 2m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 402 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