Prosecution Insights
Last updated: July 17, 2026
Application No. 19/275,629

WEDGE THREAD CONNECTION FOR TUBULAR GOODS

Non-Final OA §101§102§103
Filed
Jul 21, 2025
Priority
Apr 25, 2018 — provisional 62/662,612 +3 more
Examiner
DUNWOODY, AARON M
Art Unit
3679
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hydril Company
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
1y 9m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
1221 granted / 1627 resolved
+23.0% vs TC avg
Moderate +12% lift
Without
With
+11.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
42 currently pending
Career history
1665
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
19.9%
-20.1% vs TC avg
§102
63.1%
+23.1% vs TC avg
§112
13.7%
-26.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1627 resolved cases

Office Action

§101 §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 . Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: 128. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Double Patenting A rejection based on double patenting of the “same invention” type finds its support in the language of 35 U.S.C. 101 which states that “whoever invents or discovers any new and useful process... may obtain a patent therefor...” (Emphasis added). Thus, the term “same invention,” in this context, means an invention drawn to identical subject matter. See Miller v. Eagle Mfg. Co., 151 U.S. 186 (1894); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Ockert, 245 F.2d 467, 114 USPQ 330 (CCPA 1957). A statutory type (35 U.S.C. 101) double patenting rejection can be overcome by canceling or amending the claims that are directed to the same invention so they are no longer coextensive in scope. The filing of a terminal disclaimer cannot overcome a double patenting rejection based upon 35 U.S.C. 101. Claims 1-3, 5-7, 12, 13, 15, 16 and 18-20 is/are rejected under 35 U.S.C. 101 as claiming the same invention as that of claims 1-3, 5, 7-15 and 18-20 of prior U.S. Patent No. US 12366123. This is a statutory double patenting rejection. Claims 1-3, 5-7, 12 and 15-19 is/are rejected under 35 U.S.C. 101 as claiming the same invention as that of claims 1-3, 10, 15, 16, 23 and 25-28 of prior U.S. Patent No. US 11512538. This is a statutory double patenting rejection. 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, 3, 4, 6, 8, 10, 12 and 13 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 5931511, DeLange. In regards to claim 1, in Figure 1 and paragraphs detailing said figure, DeLange discloses a tubular connection comprising: a first joint of casing (14) comprising an integral box end with an internal female threaded zone having internal female threads disposed on the integral box end; and a second joint (24) of casing comprising: an integral pin end with an external male threaded zone having external male threads (18) disposed on the integral pin end, the external male threads configured to engage with the internal female threads such that the first joint of casing connects directly to the second joint of casing, and a metal-to-metal sealing surface (32) disposed between the external male threaded zone and a terminal end of the integral pin end; wherein said second joint of casing has an internal diameter D1, said second joint of casing further comprising an internal annular recess (see Figure 1 below) having an internal diameter D2, wherein D2 is greater than D1, the internal annular recess disposed longitudinally along an inner surface of the integral pin end. [AltContent: textbox (D1)][AltContent: textbox (D2)][AltContent: arrow][AltContent: arrow] PNG media_image1.png 1358 881 media_image1.png Greyscale In regards to claim 3, in Figure 1 and paragraphs detailing said figure, DeLange discloses the external male threads are configured to sealingly engage with the internal female threads. In regards to claim 4, in Figure 1 and paragraphs detailing said figure, DeLange discloses the internal annular recess is not disposed longitudinally along an inner surface of the second joint of casing radially adjacent to the portion of the external male threads disposed on an upper portion of the integral pin end. In regards to claim 6, in Figure 1 and paragraphs detailing said figure, DeLange discloses the internal diameter D2 of the internal annular recess is the same along an entire longitudinal length of the internal annular recess L1. In regards to claim 8, in Figure 1 and paragraphs detailing said figure, DeLange discloses the internal annular recess extends to the terminal end of the integral pin end. In regards to claim 10, in Figure 1 and paragraphs detailing said figure, DeLange discloses the internal annular recess is disposed radially adjacent to the metal-to-metal sealing surface of the integral pin end. In regards to claim 12, in Figure 1, DeLange discloses a method for forming a tubular, the method comprising: providing a joint of casing having an integral pin end with an external male threaded zone having external male threads positioned thereon and a metal-to-metal sealing surface disposed between the external male threaded zone and a terminal end of the integral pin end; and forming an internal annular recess into the joint of casing at the integral pin end, the internal annular recess having an internal diameter D2 that is greater than an internal diameter D1 of the joint of casing, the internal annular recess disposed longitudinally along an inner surface of the integral pin end. Note, DeLange illustrates the claimed structure and provides the structure in Figure 1. In regards to claim 13, in Figure 1, DeLange discloses forming the internal annular recess into the joint of casing comprises forming the internal annular recess with a longitudinal length that is less than a longitudinal length of the external male threaded zone. 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) 9 and 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over DeLange. In regards to claims 9 and 14, DeLange discloses the claimed invention except for the longitudinal length of the internal annular recess being approximately half the longitudinal length of the external male threaded zone. The DeLange invention is fully capable of having the longitudinal length of the internal annular recess being modified to approximately half the longitudinal length of the external male threaded zone. It 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 to modify the longitudinal length of the internal annular recess to approximately half the longitudinal length of the external male threaded zone, since a change in the size of a prior art device is a design consideration within the skill of the art. In re Rose, 220 F.2d 459, 105 USPQ 237 (CCPA 1955). Claim(s) 2 and 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over DeLange in view of US 20160160575, Hou. In regards to claims 2 and 7, DeLange discloses the claimed invention except for internal and external wedge dove tail threads. Hou relates to tubular connections. Hou teaches a thread system that has been used in this field is known as a “wedge” thread, which is formed by a system of dovetail threads of varying width or varying pitch, and this type of thread arrangement allows threads to easily be engaged and assembled, and yet to develop positive interference between opposing flanks of the thread in the fully assembled position ([0007]). It 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 to provide a thread system that has been used in this field is known as a “wedge” thread, which is formed by a system of dovetail threads of varying width or varying pitch, and this type of thread arrangement allows threads to easily be engaged and assembled, and yet to develop positive interference between opposing flanks of the thread in the fully assembled position, as taught by Hou. Allowable Subject Matter Claim 11 is 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AARON M DUNWOODY whose telephone number is (571)272-7080. The examiner can normally be reached Monday - Friday 9:00 am - 6:00 pm. 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 Troutman can be reached at 571-270-3654. 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. /AARON M DUNWOODY/Primary Examiner, Art Unit 3679
Read full office action

Prosecution Timeline

Jul 21, 2025
Application Filed
Apr 24, 2026
Non-Final Rejection mailed — §101, §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12674633
FLOATING JOINT AND RETAINER CONNECTION STRUCTURE
2y 0m to grant Granted Jul 07, 2026
Patent 12674536
FEMALE END ASSEMBLY AND CONNECTOR
1y 5m to grant Granted Jul 07, 2026
Patent 12668344
Outboard motor quick connect system
2y 7m to grant Granted Jun 30, 2026
Patent 12669203
COUPLING DEVICE FOR A TUBE
1y 9m to grant Granted Jun 30, 2026
Patent 12663104
CHAMFER RING FOR PIPE COUPLING
1y 2m to grant Granted Jun 23, 2026
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

1-2
Expected OA Rounds
75%
Grant Probability
86%
With Interview (+11.5%)
2y 9m (~1y 9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1627 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