Prosecution Insights
Last updated: April 19, 2026
Application No. 18/953,040

SYNCHRONOUS DRIVING DEVICE AND PHOTOVOLTAIC TRACKING BRACKET SYSTEM FOR PHOTOVOLTAIC TRACKING LINKAGE ROTATION

Non-Final OA §102§Other
Filed
Nov 19, 2024
Examiner
SUN, MICHAEL Y
Art Unit
1728
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Arctech Solar Holding Co. Ltd.
OA Round
1 (Non-Final)
56%
Grant Probability
Moderate
1-2
OA Rounds
3y 1m
To Grant
84%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
293 granted / 519 resolved
-8.5% vs TC avg
Strong +28% interview lift
Without
With
+27.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
54 currently pending
Career history
573
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
61.9%
+21.9% vs TC avg
§102
16.1%
-23.9% vs TC avg
§112
19.4%
-20.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 519 resolved cases

Office Action

§102 §Other
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 DETAILED ACTION Election/Restriction Claims 9-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 11/2/2025. Applicant's election with traverse of claim 1-8, invention I in the reply filed on 11/2/2025 is acknowledged. The traversal is on the ground(s) that the product claim has common/similar distinguishable features. This is not found persuasive because invention I does not require the particulars of “a driving tracking bracket system comprising a first main shaft,” in invention II and the particulars of “a second linkage rod; and the first driven drive mechanism being connected with the fifth driven drive mechanism through another second linkage rod;” in invention III. Invention II does not require the particulars of “the second output shaft and the third output shaft being configured to be driven by the driving source so as to rotate synchronously.” in invention I, and the particulars of “a second linkage rod; and the first driven drive mechanism being connected with the fifth driven drive mechanism through another second linkage rod;” in invention III. Invention III does not require the particulars of “a driving drive mechanism comprising a first housing and a driving transmission assembly at least partially disposed in the first housing” in invention I, and the particulars of “a first housing and a driving transmission assembly at least partially disposed in the first housing;” in invention II. The requirement is still deemed proper and is therefore made FINAL. 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) 1-2 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Wang (WO2021/077554, English translation as US Pub No. US Pub No. 2021/0328542) Regarding Claim 1, Wang et al. teaches a synchronous driving device [Fig. 1, 0046], comprising: a driving source comprising a driving end [0007]; and a driving drive mechanism [1, Fig. 1, 0047] comprising a first housing [201 and 52, Fig. 4, 0037] and a driving transmission assembly [10, 11, 3, 100, 200, and 4, Fig. 1, 0037] at least partially disposed in the first housing [Fig. 1 and Fig. 5, 0037]; the driving transmission assembly comprising an input shaft [3, Fig. 1, 0037], a first output shaft [100, Fig. 1, 0037], a second output shaft [200, Fig. 1, 0037] and a third output shaft [4, Fig. 1, 0037]; the first output shaft [100, Fig. 1, 0037], the second output shaft [200, Fig. 1, 0037] and the third output shaft [4, Fig. 1, 0037 being engaged in transmission [0057-0058]; the driving end of the driving source being connected with the input shaft [3, Fig. 1, 0037]; the first output shaft [100, Fig. 1, 0037], the second output shaft [200, Fig. 1, 0037] and the third output shaft [4, Fig. 1, 0037] protruding beyond the first housing [Fig. 1 and Fig. 5, portions of the driving transmission assembly are in the housing and portions are outside the housing]; the first output shaft and the second output shaft being disposed in parallel along a first direction [see 100 and 200 in figure 1]; the third output shaft being perpendicular to the first output shaft and the second output shaft [See 4 relative to 100 and 200, Fig. 1]; the first output shaft, the second output shaft and the third output shaft being configured to be driven by the driving source so as to rotate synchronously [0059, 0057-0059]. Regarding Claim 2, Wang et al. is relied upon for the reasons given above, Wang et al. teaches wherein the driving transmission assembly comprises a fourth output shaft [In figure 4, see outside section of 4, see annotated figure]; the third output shaft and the fourth output shaft protrude oppositely beyond the first housing; the fourth output shaft is perpendicular to the first output shaft and the second output shaft; the first output shaft, the second output shaft, the third output shaft and the fourth output shaft are configured to be driven by the driving source so as to rotate synchronously [Fig. 4, See annotated figure] Figure 4 shows two sections for 4, the circle portion is the third output shaft, and the rectangle portion is the fourth output shaft. [AltContent: rect][AltContent: oval] PNG media_image1.png 447 377 media_image1.png Greyscale Allowable Subject Matter Claims 3-7 are 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. The following is an examiner’s statement of reasons for allowance: Wang (WO2021/077554, English translation as US Pub No. US Pub No. 2021/0328542) and Corio ( US Pub No. 20140338659 ) is the closest prior art. Wang et al. teaches a synchronous driving device [Fig. 1, 0046], comprising: a driving source comprising a driving end [0007]; and a driving drive mechanism [1, Fig. 1, 0047] comprising a first housing [201 and 52, Fig. 4, 0037] and a driving transmission assembly [10 and 11, Fig. 1, 0037] at least partially disposed in the first housing [Fig. 1 and Fig. 5]; the driving transmission assembly comprising an input shaft [3, Fig. 1, 0037], a first output shaft [100, Fig. 1, 0037], a second output shaft [200, Fig. 1, 0037] and a third output shaft [4, Fig. 1, 0037]; the first output shaft, the second output shaft and the third output shaft being engaged in transmission [0057-0058]; the driving end of the driving source being connected with the input shaft; the first output shaft, the second output shaft and the third output shaft protruding beyond the first housing [Fig. 1]; the first output shaft and the second output shaft being disposed in parallel along a first direction [see 100 and 200 in figure 1]; the third output shaft being perpendicular to the first output shaft and the second output shaft [See 4 relative to 100 and 200, Fig. 1]; the first output shaft, the second output shaft and the third output shaft being configured to be driven by the driving source so as to rotate synchronously [0059, 0057-0059]. Corio et al. teaches rotating drive shaft is affixed to both sides of the worm-drive assembly. The drive shaft may be positioned at right angles to the torsion tube and attached to each worm-gear drive to enable rotary motion of the torsion tube by applying rotary motion to the driven drive shaft. Back driving of the gearbox from wind forces applied to the system is virtually eliminated through the properties inherent in the design of the primary worm-drive gear assembly located at each tracker [0027]. Modified Wang et al. teaches limitations of the claim but does not disclose the limitations of “wherein the driving transmission assembly comprises a driving worm gear, a driving worm, a first driving gear, a second driving gear, a third driving gear and a fourth driving gear; the driving worm meshes with a lower side of the driving worm gear; the first driving gear is arranged coaxially with the driving worm; the second driving gear meshes with a lower side of the first driving gear; the third driving gear is arranged coaxially with the second driving gear; and the fourth driving gear meshes perpendicularly with the third driving gear.” in claim 3, “wherein the driving worm is connected with the first output shaft; the third output shaft and the fourth output shaft are disposed coaxially, and the third output shaft and the fourth output shaft are connected with two ends of the driving worm, respectively. ” in claim 4, “wherein the driving worm is connected with a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are respectively disposed at two free ends of the driving worm opposite to each other; the first connecting portion is the third output shaft; and the second connecting portion is the fourth output shaft.” in claim 5, “further comprising a third connecting portion which is provided at an end of the second driving gear and a fourth connecting portion which is provided at an end of the third driving gear; wherein the third connecting portion and the fourth connecting portion are respectively arranged at opposite ends of the second driving gear and the third driving gear; the third connecting portion is the third output shaft; and the fourth connecting portion is the fourth output shaft.” in claim 6, “wherein the fourth driving gear is connected with a fifth connecting portion and a sixth connecting portion; the fifth connecting portion and the sixth connecting portion are respectively arranged at two free ends of the fourth driving gear opposite to each other; the fifth connecting portion is the input shaft; and the sixth connecting portion is the second output shaft.” in claim 7, and “wherein the driving worm gear is connected with two seventh connecting portions; the two seventh connecting portions are respectively arranged at two ends of the driving worm gear; and the two seventh connecting portions form the first output shaft.” in claim 8. These references, nor any other reference or combination of references in the prior art suggest or render obvious the limitations of “wherein the driving transmission assembly comprises a driving worm gear, a driving worm, a first driving gear, a second driving gear, a third driving gear and a fourth driving gear; the driving worm meshes with a lower side of the driving worm gear; the first driving gear is arranged coaxially with the driving worm; the second driving gear meshes with a lower side of the first driving gear; the third driving gear is arranged coaxially with the second driving gear; and the fourth driving gear meshes perpendicularly with the third driving gear.” in claim 3, “wherein the driving worm is connected with the first output shaft; the third output shaft and the fourth output shaft are disposed coaxially, and the third output shaft and the fourth output shaft are connected with two ends of the driving worm, respectively. ” in claim 4, “wherein the driving worm is connected with a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are respectively disposed at two free ends of the driving worm opposite to each other; the first connecting portion is the third output shaft; and the second connecting portion is the fourth output shaft.” in claim 5, “further comprising a third connecting portion which is provided at an end of the second driving gear and a fourth connecting portion which is provided at an end of the third driving gear; wherein the third connecting portion and the fourth connecting portion are respectively arranged at opposite ends of the second driving gear and the third driving gear; the third connecting portion is the third output shaft; and the fourth connecting portion is the fourth output shaft.” in claim 6, “wherein the fourth driving gear is connected with a fifth connecting portion and a sixth connecting portion; the fifth connecting portion and the sixth connecting portion are respectively arranged at two free ends of the fourth driving gear opposite to each other; the fifth connecting portion is the input shaft; and the sixth connecting portion is the second output shaft.” in claim 7, and “wherein the driving worm gear is connected with two seventh connecting portions; the two seventh connecting portions are respectively arranged at two ends of the driving worm gear; and the two seventh connecting portions form the first output shaft.” in claim 8. Therefore; claim 1 is allowed once the limitations of claims 3-8 are incorporated into claim 1. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL Y SUN whose telephone number is (571)270-0557. The examiner can normally be reached 9AM-7PM. 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, MATTHEW MARTIN can be reached at (571) 270-7871. 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. /MICHAEL Y SUN/ Primary Examiner, Art Unit 1728
Read full office action

Prosecution Timeline

Nov 19, 2024
Application Filed
Feb 16, 2026
Non-Final Rejection — §102, §Other (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
56%
Grant Probability
84%
With Interview (+27.5%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 519 resolved cases by this examiner. Grant probability derived from career allow rate.

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