Prosecution Insights
Last updated: April 19, 2026
Application No. 18/879,175

WIND TURBINE TOWER AND CARRIAGE

Non-Final OA §102
Filed
Dec 26, 2024
Examiner
TRAN, DIEM M
Art Unit
3654
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Sense Wind Limited
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
93%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
516 granted / 649 resolved
+27.5% vs TC avg
Moderate +14% lift
Without
With
+13.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
25 currently pending
Career history
674
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
36.5%
-3.5% vs TC avg
§102
40.3%
+0.3% vs TC avg
§112
21.2%
-18.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 649 resolved cases

Office Action

§102
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 . This is the First Office Action on the merits of Application No. 18/879175, filed on 12/26/2024. Claims 44-58 are still pending in the application. 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) 44-58 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by GB 2561612 to Geraets et al (henceforth referred to as Geraets). Regarding claims 44-58, Geraets discloses a wind turbine tower elevator carriage comprising: a carriage body (i.e. Fig. 4a, ref. 29); a lifting mechanism (i.e. Fig. 3, ref. 33) for raising and lowering the carriage body on a wind turbine tower (i.e. Fig. 6, ref. 3); and a carriage arm (i.e. Fig. 4b, ref. 51) connected to the carriage body, wherein the carriage arm comprises a lateral bearing assembly (i.e. Fig. 4a, ref. 47) and a bearing arm actuator (i.e. Page 21, line 12: “Actuators adjust the position of the arms 52…”) for engaging the lateral bearing assembly with a first tower rail (i.e. Fig. 4b, ref. 21 on the left) of the wind turbine tower. Wherein the lateral bearing assembly is configured to receive a second tower rail (i.e. Fig. 4b, ref. 21 on the right) of the wind turbine tower into the lateral bearing assembly. wherein the lateral bearing assembly comprises a clamping mechanism (i.e. Fig. 4a, ref. 47 and 41 clamps on rail, ref. 21). Wherein the lateral bearing assembly comprises a sliding bearing (i.e. Page 29, line 20-21: “bearings 41, 47… can be sliding bearings, for example PTFE pads”) and a clamping mechanism (i.e. Fig. 4a, ref. 47 and 41 clamps on rail, ref. 21). Wherein the lateral bearing assembly is configured to releasably receive the second tower rail (i.e. Claim 14: “means for releasably engaging the rails includes at least one adjustable bearing arranged to selectively engage the rails”). Wherein the lateral bearing assembly comprises a first bearing member (i.e. Fig. 4a, ref. 47) for engaging against a side of a second tower rail (i.e. Fig. 4a, in this case the underside of ref. 21 on the right) of the wind turbine tower. Wherein the first bearing member is a bearing pad (i.e. Page 29, line 20-21: “bearings 41, 47… can be sliding bearings, for example PTFE pads”) or a roller. Wherein the lateral bearing assembly comprises a second bearing member (i.e. Fig. 4a, ref. 41) for engaging with an exterior surface (i.e. Fig. 4a, in this case exterior of the rail directly connected to the tower body is considered integral with the tower body) of a tower body of the wind turbine tower. Wherein the carriage arm comprises one or more extendible arm members (i.e. Fig. 4b shows at least 4 different arms, ref. 51) for changing a separation between the carriage body and the lateral bearing assembly. Further comprising: a load bearing part (i.e. Fig. 4a, ref. 53); and a pivot mechanism (i.e. Page 7, lines 6-11: “means for releasably engaging the rails…An actuator moves the bearing surface into and out of engagement with the rails. The bearing surface can be mounted to a support, such as a pivotable arm”) for pivoting the carriage body with respect to the load bearing part about a substantially vertical axis when the wind turbine tower elevator carriage is mounted onto a side of the wind turbine tower. Wherein the load bearing part is a clamping mechanism (i.e. Fig. 4a, the rail, ref. 21, is clamped between ref. 53 and 41). Further comprising: independently operable first and second releasable rail clamps (i.e. Fig. 41a shows clamping mechanisms 41 and 47 on the left and on the right, respectively); and a lifting mechanism (i.e. Fig. 3, ref. 33) for raising and lowering the carriage body with respect to the first releasable rail clamp. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US Patent Application Publication No. 2016/0369778 to Davis teaches a Nacelle carriage with rollers; US Patent No. 12,246,949 to Gehring teaches a tower sliding lift; US Patent Application Publication No. 2010/0150684 to Pendersen et al teaches a tower elevator with arms. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DIEM M TRAN whose telephone number is (571)270-7825. The examiner can normally be reached M 9-5, W-F 10-2. 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, Victoria Augustine can be reached at (313) 446-4858. 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. /DIEM M TRAN/Examiner, Art Unit 3654
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Prosecution Timeline

Dec 26, 2024
Application Filed
Feb 17, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600607
VERTICAL HANDLING PLATFORM FOR MOTOR VEHICLES
2y 5m to grant Granted Apr 14, 2026
Patent 12589975
A METHOD AND AN ARRANGEMENT FOR ALIGNING ELEVATOR GUIDE RAILS
2y 5m to grant Granted Mar 31, 2026
Patent 12583717
LIFT APPARATUS FOR VEHICLE
2y 5m to grant Granted Mar 24, 2026
Patent 12583713
EXTENDABLE EVACUATION BRIDGE FOR AN ELEVATOR
2y 5m to grant Granted Mar 24, 2026
Patent 12565410
SIDE SHIFT CONTROL DEVICE FOR FORKLIFT TRUCK
2y 5m to grant Granted Mar 03, 2026
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
80%
Grant Probability
93%
With Interview (+13.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 649 resolved cases by this examiner. Grant probability derived from career allow rate.

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