Prosecution Insights
Last updated: July 17, 2026
Application No. 16/949,333

METHODS OF DETECTING LONG RANGE CHROMOSOMAL INTERACTIONS

Non-Final OA §101
Filed
Oct 26, 2020
Priority
Jun 02, 2008 — GB 0810051.3 +3 more
Examiner
LEITH, NANCY J
Art Unit
1636
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Oxford Biodynamics PLC
OA Round
5 (Non-Final)
75%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
613 granted / 821 resolved
+14.7% vs TC avg
Strong +44% interview lift
Without
With
+43.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
38 currently pending
Career history
872
Total Applications
across all art units

Statute-Specific Performance

§101
4.3%
-35.7% vs TC avg
§103
47.5%
+7.5% vs TC avg
§102
7.9%
-32.1% vs TC avg
§112
12.2%
-27.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 821 resolved cases

Office Action

§101
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on June 4, 2026 has been entered. Applicants previously canceled claims 1-5 and 7-13. Applicants amend claim 6, which claim is pending in this application and under examination. Any objection or rejection of record in the previous Office Action, mailed April 4, 2026, which is not addressed in this action has been withdrawn in light of Applicants’ amendments and/or arguments. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claim 6 is rejected under 35 U.S.C. 101 because the claimed invention is directed to a law of nature without significantly more. This rejection is maintained, as modified necessitated by Applicants’ amendments. The claims recite a method of selecting and individual in need of treatment and treating the individual comprising selecting a gene in the individual in which a change in a specific conditional long- range epigenetic chromosomal interaction occurs, determining whether the change in the chromosomal interaction changes a transcription regulating structure comprising CTCF and Pol II, determining whether the change in the epigenetic chromosomal interaction corresponds to a physiological condition, treating an individual in which the change in the chromosomal interaction is found, where the change in the chromosomal interaction has been identified as being present by determining the presence of ligated DNA formed in vitro from the two regions of chromosome in the gene that have come together in the chromosomal interaction, wherein the change in the epigenetic chromosomal interaction leads to an alternative expression from the gene, wherein the physiological condition corresponds to a condition selected from the group consisting of a cardiovascular disorder, an inflammatory condition, an autoimmune disorder, an inflammatory response to an infectious disease, a cancer and an inherited genetic disorder, wherein treating the individual comprises administering to the individual an agent which is therapeutic for the physiological condition. The claims further recite that “the ligated DNA comprises an artificial sequence (i) comprising sequences from the two regions of chromosome, and (ii) which is not the same as any genomic sequence of the individual.” Step 1 – Is the Claim to a Process, Machine, Manufacture, or Composition of Matter? YES The claims recite a method of selecting and treating an individual comprising a series of steps that recite judicial exceptions without additional elements that are sufficient to amount to significantly more than the judicial exception. Step 2A- Prong One – Does the Claim Recite and Abstract Idea, Law of Nature or Natural Phenomenon? YES The claims recite a specific conditional long-range epigenetic chromosomal interaction in the gene of an individual and changes in the epigenetic chromosomal interaction corresponding to a physiological condition, wherein monitoring the change in the epigenetic chromosomal interaction comprises ligating together DNA sequences from the regions of chromosomes in the gene that have come together in the chromosomal interaction to thereby make ligated DNA. DNA ligation refers to a judicial exception because DNA ligation occurs naturally within regions of chromosomes coming together evidenced by Timson et al. (“DNA ligases in the repair and replication of DNA” Mutation Research/DNA Repair, Volume 460, Issues 3-4, Year: 2000). “DNA ligases are critical enzymes of DNA metabolism. The reaction they catalyse (the joining of nicked DNA) is required in DNA replication and in DNA repair pathways that require the re-synthesis of DNA” (Abstract). Further, monitoring/detecting are mental processes which are judicial exceptions. Step 2A - Prong Two – Do the Claims Recite an Additional Elements that Integrate the Judicial Exception into a Practical Application? NO The additional element of detecting the presence of ligated DNA which corresponds to a chromosomal interaction is noted. Applicant also includes the additional element of treating. The additional element of an artificial sequence which is not the same as any genomic sequence of the individual. These additional elements do not amount to a practical application. Step 2B – Do the Claims Recite Additional Elements that Amount to Significantly More than the Judicial Exception? NO The claims do not include additional elements that are sufficient to amount to significantly more than the judicial exception. The additional element of detecting is considered to be a routine and mere data gathering step. The additional element of treating is considered to be a generic and non-specific form of treating. The claim recites “wherein treating the individual comprises administering to the individual an agent which is therapeutic for the physiological condition.” This is not a specific treatment or method of treating and is not considered to amount to significantly more than the judicial exception. The claim further recites the additional elements of in vitro crosslinking “regions which form conditional long range chromosomal interactions to form cross linked DNA, isolation of the cross linked DNA, subjecting said cross linked DNA to restriction digestion to form cross linked cleaved DNA ends, and ligating said cross linked cleaved DNA ends to form the ligated DNA. These additional elements are data gathering in nature. All of these additional elements are performed to create the ligated DNA. These additional elements do not amount to significantly more than the judicial exception. Therefore, the claims are deemed to be patentably ineligible subject matter. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claim 6 is rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1of U.S. Patent No. 10,844,423. This rejection is maintained. Although the claims at issue are not identical, they are not patentably distinct from each other. recite a method of selecting and individual in need of treatment and treating the individual comprising selecting a gene in the individual in which a change in a specific conditional long- range epigenetic chromosomal interaction occurs, determining whether the change in the chromosomal interaction changes a transcription regulating structure comprising CTCF and Pol II, determining whether the change in the epigenetic chromosomal interaction corresponds to a physiological condition, treating an individual in which the change in the chromosomal interaction is found, where the change in the chromosomal interaction has been identified as being present by determining the presence of ligated DNA formed in vitro from the two regions of chromosome in the gene that have come together in the chromosomal interaction, wherein the change in the epigenetic chromosomal interaction leads to an alternative expression from the gene, wherein the physiological condition corresponds to a condition selected from the group consisting of a cardiovascular disorder, an inflammatory condition, an autoimmune disorder, an inflammatory response to an infectious disease, a cancer and an inherited genetic disorder, wherein treating the individual comprises administering to the individual an agent which is therapeutic for the physiological condition. Claim 1 of the ‘423 patent recites “A method of monitoring a change in a specific conditional long range chromosomal interaction comprising: making a predefined ligated DNA of known identity from a DNA sample from a subject by a chromosome conformation capture (3C) technique comprising the steps of: (i) in vitro crosslinking in the DNA sample specific conditional long range chromosomal interactions between distant regions of a known chromosome locus; (ii) isolating the cross linked DNA from said chromosomal locus; (iii) subjecting said cross linked DNA to restriction digestion with an enzyme that cuts at least once within the chromosomal locus; (iv) ligating said cross linked cleaved DNA ends to form the predefined ligated DNA; (v) amplifying said ligated DNA by PCR using PCR primers that specifically amplify the predefined ligated DNA; - wherein the locus comprises a gene that is regulated by metabolic signaling which leads to an alternative expression from the gene due to a change in chromosome interactions at the locus, and wherein the chromosome interactions are not associated with an inherited genetic disorder, and - wherein the locus is not the B-globin locus, and - wherein the long range chromosomal interactions are not interactions between genes and their regulatory elements.” Both the instant application and the patent claim the same method steps. The ‘423 patent claims PCR amplification. The ‘423 patent claims a predefined ligated DNA. The ‘423 patent claims the same chromosomal interactions. Therefore, the scope of the ‘423 patent claims and the instant application overlap, and they are deemed to be obvious variants of one another. Response to Amendments and Arguments Regarding the rejection under 35 U.S.C. § 112(a)/first paragraph, Applicants’ amendments and arguments have been fully considered and are deemed to be persuasive. Therefore, this rejection is withdrawn. Regarding the rejection under 35 U.S.C. § 101, Applicants’ arguments and amendments have been fully considered, and are not deemed to be persuasive. Applicants assert that new step (e) (“detecting the ligated DNA using PCR, wherein the PCR comprises amplification by a pair of primers, wherein (i) the pair of primers have been designed to detect the ligated DNA, (ii) the pair of primers comprises a forward and reverse primer that each comprise a sequence complementary to the sequence in the ligated DNA” is not found in nature. Applicants further assert that the ligated DNA does not exist in nature and is not the same as the natural DNA ligation described by Timson. Applicants also assert that the claimed PCR primer pair is not found in nature. Applicants further assert that additional elements of the claims, including in vitro crosslinking, restriction digestion, ligation, and PCR detection steps into a practical application by transforming the sample to generate an artificial product. However, this difference is deemed to be irrelevant because the claim, as a whole, is a method claim directed to the judicial exception. Just because there are in vitro steps and some sequences are not the same as an individual, this does not provide for integration of judicial exception into a practical application. In addition, because this is a process claim, adding limitations to an artificial sequence and/or sequences that are not obtained from the individual does not provide a practical application of the judicial exception. Applicants appear to be arguing that because the products are not found in nature, the claim limitations are patent eligible. However, using sequences that are not found in the individual or in nature does not change the judicial exception. Nor does the use of PCR and a PCR primer pair to detect ligated DNA change the judicial exception. As noted previously and above, the claims are directed to a method, not a product, and the method does not provide additional elements to integrate the judicial exception into a practical matter. Specifically, monitoring a change is not something to integrate into a practical application, even where some components employed in the method. Rather, this monitoring is considered to be merely a data gathering step. Further, the steps of in vitro crosslinking, restriction digestion, ligation, and PCR detection steps are deemed to be routine and conventional. As such, these steps do not provide for integration of the judicial exception into a practical application. In addition, although the claims recite treatment of a condition based upon the change in epigenetic chromosomal interaction, the claims are of a highly general nature and do not provide for any specific treatments of any of the claimed conditions. Concerning Applicants’ arguments related to Timson, it is noted that processes using ligases that are found in nature in a process to generate artificial sequences still does not integrate the judicial exception into a practical application. The method is still a process that employs diagnostic and detection methods without a specific treatment of a specific disease or condition. Therefore, the method is still directed to a judicial exception, without integration of the judicial exception into a practical application. Because the claims are still deemed to recite a judicial exception, do not include any additional elements amounting to significantly more than the judicial exception, and do not integrated the judicial exception, this rejection is maintained. Regarding the non-statutory double patenting rejection, while Applicants note that they traverse the rejection, they request that the rejection be held in abeyance until such time as there is an indication of otherwise allowable subject matter. Therefore, this rejection is maintained. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The closest prior art to this case is Zhao et al. (2006, Nature Genetics, 38: 1341-1347). Zhao teaches a method of identification of epigenetically regulated long range chromosomal interactions by crosslinking interacting chromosomes between known locus of H19 and a number of unknown loci, isolating crosslinked DNA, using restriction enzyme to cut both known and unknown chromosomal locus, ligating crosslinked DNA molecules leading to formation of DNA loops and further analysis of the loops, such analysis involving PCR techniques (see page 1341, last paragraph, and Fig.1). Any inquiry concerning this communication or earlier communications from the examiner should be directed to NANCY J LEITH whose telephone number is (313) 446-4874. The examiner can normally be reached Monday - Thursday 8:00 AM - 6:30 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, NEIL HAMMELL can be reached at (571) 270-5919. 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. NANCY J. LEITH Primary Examiner Art Unit 1636 /NANCY J LEITH/Primary Examiner, Art Unit 1636
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Prosecution Timeline

Show 6 earlier events
Oct 10, 2025
Response after Non-Final Action
Nov 25, 2025
Non-Final Rejection mailed — §101
Feb 24, 2026
Response Filed
Apr 06, 2026
Final Rejection mailed — §101
Jun 04, 2026
Response after Non-Final Action
Jun 17, 2026
Request for Continued Examination
Jun 18, 2026
Response after Non-Final Action
Jun 29, 2026
Non-Final Rejection mailed — §101 (current)

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Prosecution Projections

5-6
Expected OA Rounds
75%
Grant Probability
99%
With Interview (+43.6%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 821 resolved cases by this examiner. Grant probability derived from career allowance rate.

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