Prosecution Insights
Last updated: April 19, 2026
Application No. 18/884,292

DOWNHOLE ENERGY HARVESTING SYSTEM

Non-Final OA §102§103
Filed
Sep 13, 2024
Examiner
AMAYA, CARLOS DAVID
Art Unit
2836
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
The Charles Machine Works Inc.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
97%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
889 granted / 1061 resolved
+15.8% vs TC avg
Moderate +14% lift
Without
With
+13.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
24 currently pending
Career history
1085
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
39.1%
-0.9% vs TC avg
§102
40.9%
+0.9% vs TC avg
§112
11.5%
-28.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1061 resolved cases

Office Action

§102 §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 . 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) 1-5, 8, 10 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Godager et al. (US 2017/0204724). With respect to claim 1, Godager discloses a kit, comprising: a beacon comprising a transmitting antenna (paragraph 0046 discloses wireless communication system 1 with respective transmitting antennas), the transmitting antenna configured to emit a dipole magnetic field (paragraphs 002-0022 disclose that the antennas are electric dipoles); a harvesting antenna, configured to receive the dipole magnetic field and convert the dipole magnetic field into power (paragraphs 0057-0059 discloses a harvesting antenna to harvest the dipole magnetic field and distribute power to local components); and electronics configured to detect information about an underground boring operation, wherein the electronics are provided power from the harvesting antenna (paragraphs 0062-0063 discloses that wellbore instrument 22 comprises sensors and actuators that receive power from the harvesting antenna). With respect to claim 2, Godager discloses the kit of claim 1 wherein the electronics comprise: an energy storage device, configured to receive power from the harvesting antenna; and a plurality of sensors, configured to receive power from the energy storage device. Paragraph 0062 discloses power storage means. With respect to claim 3, Godager discloses the kit of claim 2 wherein the electronics further comprise a first radio, configured to receive power from the energy storage device and to transmit a first signal, the first signal containing information received from the plurality of sensors. Paragraphs 0047, 0062 discloses that the system communicates via radio waves to the wellbore instrument that comprises energy storage means. With respect to claim 4, Godager discloses the kit of claim 3 wherein the beacon further comprises a second radio, configured to receive the first signal. Paragraph 0047 discloses communicating radio waves to/from control system 70 with respective antennas. With respect to claim 5, Godager discloses the kit of claim 4 wherein the transmitting antenna is configured to encode a second signal on the dipole magnetic field, wherein the second signal contains information received on the first signal by the second radio. Paragraphs 0047-0052 discloses modulating power and information signal onto a carrier. With respect to claim 8, Godager discloses the kit of claim 1, in which the harvesting antenna is a first harvesting antenna, the kit further comprising: a second harvesting antenna configured to receive the dipole magnetic field and convert the dipole magnetic field into power; in which the electronics are provided power from the second harvesting antenna. Figure 1 discloses a first and second harvesting antennas 11, 21, second antenna 21 provided power to the wellbore instruments. With respect to claim 10, Godager discloses the kit of claim 1, in which the harvesting antenna is a ferrite rod. Paragraphs 0099, 0102 discloses using a ferrite core. 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) 6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Godager et al. (US 2017/0204724) in view of Switzer et al. (US 2016/0194952). With respect to claim 6, Godager discloses the kit of claim 5; except for, in which the first radio and the second radio comprise Bluetooth radios. Switzer discloses a downhole probe assembly for downhole drilling, comprising Bluetooth devices for transmitting information between the probe and the surface, paragraph 0001. It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claim invention, to have modify Godager and include the Bluetooth radios of Switzer, for the purpose of providing a wireless technology standard for exchanging data, for example (paragraph 0010). Claim(s) 7, 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Godager et al. (US 2017/0204724) in view of PETERS (US 2021/0381314). With respect to claim 7, Godager discloses a downhole tool; except for, comprising: a beacon housing disposed on a drill string; and the kit of claim 1, in which the beacon is situated within the beacon housing and the electronics are situated outside of the beacon housing. PETERS discloses housings 64 disposed on a drill string, figures 1-3 disclose that the beacon is provided in a housing separate from sensor tool 30, for example. It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claim invention, to have modify Godager and include the beacon housing of PETERS, for the purpose of providing a housing that is configured to be removable attached to the downhole tool, for example (paragraph 0058). With respect to claim 9, Godager discloses the kit claim 1; except for, in which the harvesting antenna communicates with the electronics via a rectifier circuit. PETERS discloses that the energy controller includes a rectifier to generate a DC current to be provided to the electronics withing the module, paragraph 0074. It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claim invention, to have modify Godager and include the rectifier circuit of PETERS, for the purpose of providing a control and required power of the electronics received by the harvesting antenna, for example. Claim(s) 11-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Godager et al. (US 2017/0204724) in view of Morse et al. (US 2020/0370417). With respect to claim 11, Godager discloses the kit of claim 1; except for, in which the harvesting antenna is a PCB antenna. Morse discloses a circuit board 102 with a radio antenna 128 provided on the circuit board 102, figure 3. It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claim invention, to have modify Godager and include the circuit board with a circuit board antenna as described by Morse, for the purpose of providing a small compact device, for example. With respect to claim 12, Godager disclose the kit of claim 1; except for, further comprising a tracker, wherein the tracker comprises a receiving antenna configured to receive the dipole magnetic field. Morse discloses a tracker 36 configured to analyzed beacon signal to determine position of the downhole beacon. It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claim invention, to have modify Godager and include the tracker as disclosed by Morse, for the purpose of locating the downhole tool and receiving information relating to the operation of the downhole tool, for example (paragraph 0018). With respect to claim 13, Godager in view of Morse disclose a system for monitoring a horizontal boring operation, comprising: an above-ground horizontal directional drilling machine; a drill string, extending from the above-ground horizontal directional drilling machine to a below-ground location; a downhole tool comprising a beacon housing, supported by the drill string at the below-ground location; and the kit of claim 12, wherein: the beacon is disposed within the beacon housing; and the electronics are supported by the drill string outside of the beacon housing. Morse discloses in figure 1 a directional drilling machine with an above ground machine and drill string located below ground with a beacon housing, figure 3. With respect to claim 14, Godager in view of Morse disclose the system of claim 13 wherein: the electronics comprise: a first Bluetooth radio, powered by the harvesting antenna; and a first sensor, powered by the harvesting antenna; and wherein: the first sensor provides data to the first Bluetooth radio and the first Bluetooth radio transmits the data to the beacon. Godager and Morse discloses that the harvesting antenna provides power to the sensors and the ratio antennas to transmit radio signals. With respect to claim 15, Godager in view of Morse disclose the system of claim 14 wherein the beacon transmits the data to the tracker via the dipole magnetic field. Morse discloses in figure 1 providing dipole magnetic field to the tracker 36. Claim(s) 16-23 is/are rejected under 35 U.S.C. 103 as being unpatentable over Morse et al. (US 2020/0370417) in view of Godager et al. (US 2017/0204724). With respect to claim 16, Morse discloses a downhole tool, comprising: a beacon configured to emit a magnetic dipole field (figures 1,3 disclose beacon 32 to emit dipole signal 34); an elongate housing having an exterior surface within which a cavity is formed, the cavity receiving the beacon and having an open mouth that joins the exterior surface of the housing (figure 3 discloses elongate housing with a cavity 50 for receiving beacon 32); a lid configured to close the mouth of the cavity (lid 54). Morse; however, does not expressly disclose a harvesting antenna situated within a pathway of the emitted magnetic dipole field; and an energy storage device in communication with the harvesting antenna. Godager discloses in paragraphs 0057-0059, 0062-0063 a harvesting antenna to harvest the dipole magnetic field and distribute power to local components and power storage means. It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claim invention, to have modify Morse and include the harvesting antenna of Godager, for the purpose of harvesting power and distributing the harvested power to local electric components and circuits, for example (paragraph 0057). With respect to claim 17, Morse in view of Godager disclose the downhole tool of claim 16, in which the harvesting antenna is a ferrite rod situated in a parallel-relationship with the beacon. Paragraphs 0099, 0102 discloses using a ferrite core. With respect to claim 18, 19, 20 Morse in view of Godager disclose the downhole tool of one of the claims, further comprising: one or more sensors in communication with the energy storage device; a first radio in communication with the energy storage device and the one or more sensors; and a second radio in communication with the beacon and the first radio. Paragraphs 0047, 0062 discloses that the system communicates via radio waves to the wellbore instrument that comprises energy storage means. Paragraph 0047 discloses communicating radio waves to/from control system 70 with respective antennas, the information provided is data measured by the sensors. With respect to claim 21, Morse in view of Godager disclose the downhole tool of claim 18 in which the one or more sensors comprise a pressure sensor and an accelerometer. Morse and Godager disclose that the sensors are of any type of sensors. With respect to claim 22, Morse in view of Godager disclose the downhole tool of claim 16 in which the energy storage device comprises a battery. Morse and Godager disclose that the energy storage device is comprises a battery. With respect to claim 23, Morse in view of Godager disclose discloses the apparatus necessary to complete the recited method steps, as discussed above in the rejection of claim 16. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CARLOS AMAYA whose telephone number is (571)272-8941. The examiner can normally be reached M-F 7:00AM-4:00PM. 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, Rexford Barnie can be reached at (571) 272-7492. 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. /CARLOS AMAYA/Primary Examiner, Art Unit 2836
Read full office action

Prosecution Timeline

Sep 13, 2024
Application Filed
Feb 03, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603529
APPARATUS AND METHOD FOR PERFORMING WIRELESS POWER TRANSMISSION ON BASIS OF FOREIGN MATERIAL DETECTION
2y 5m to grant Granted Apr 14, 2026
Patent 12597780
SEMI-AUTONOMOUS ELECTRIC POWER GENERATION SYSTEM AND OPERATION METHOD THEREOF
2y 5m to grant Granted Apr 07, 2026
Patent 12592566
DIRECT CURRENT CIRCUIT BREAKER
2y 5m to grant Granted Mar 31, 2026
Patent 12592583
REMOTE SENSING AND CONTROL AT THE POINT OF COMMON COUPLING IN AN ELECTRICAL GRID
2y 5m to grant Granted Mar 31, 2026
Patent 12576800
ROBUST HIGH VOLTAGE CABLE ROUTING/MOUNTING COUPLING
2y 5m to grant Granted Mar 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

1-2
Expected OA Rounds
84%
Grant Probability
97%
With Interview (+13.5%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1061 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