Prosecution Insights
Last updated: October 04, 2026
Application No. 18/149,934

MECHANICAL OPENING OF LIPID BILAYERS BY MOLECULAR NANOMACHINES

Non-Final OA §102§103§DP
Filed
Jan 04, 2023
Priority
Jul 14, 2016 — provisional 62/362,206 +3 more
Examiner
PERREIRA, MELISSA JEAN
Art Unit
Tech Center
Assignee
Durham University
OA Round
1 (Non-Final)
52%
Grant Probability
Moderate
1-2
OA Rounds
0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
435 granted / 836 resolved
-8.0% vs TC avg
Strong +26% interview lift
Without
With
+25.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
35 currently pending
Career history
877
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
56.1%
+16.1% vs TC avg
§102
12.7%
-27.3% vs TC avg
§112
16.5%
-23.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 836 resolved cases

Office Action

§102 §103 §DP
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 . Claims Status Claims 1-10 are pending in the application. Claim Objections Claim 6 is objected to because of the following informalities: the structures of claim 6 are illegible. Appropriate correction is required. PNG media_image1.png 320 600 media_image1.png Greyscale PNG media_image2.png 168 580 media_image2.png Greyscale PNG media_image3.png 190 482 media_image3.png Greyscale Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Koumura et al. (J. Am. Chem. Soc. 2002, 124, 5037-5051). Koumura et al. (J. Am. Chem. Soc. 2002, 124, 5037-5051) teaches of the molecular motors PNG media_image4.png 150 162 media_image4.png Greyscale PNG media_image5.png 152 270 media_image5.png Greyscale wherein X is S; Y is S; R1 is OMe, H and R2 is H, OMe (Figure 3) and anticipates the molecules PNG media_image6.png 156 368 media_image6.png Greyscale of the instant claims when X is S; R1 is methoxy groups or hydrogen; R2 is hydrogen or methoxy groups and R3 is PNG media_image7.png 80 118 media_image7.png Greyscale . Claim(s) 1-4 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by ter Wiel et al. (Org. Biomol. Chem. 2005, 3, 28-30). ter Wiel et al. (Org. Biomol. Chem. 2005, 3, 28-30) teaches of the molecular motors PNG media_image8.png 110 122 media_image8.png Greyscale wherein Y is S; R is H, OMe or NO2 and anticipates the molecules PNG media_image6.png 156 368 media_image6.png Greyscale of the instant claims when X is S; R1 is methoxy groups, hydrogen or nitro and R2 is hydrogen, methoxy groups or nitro and R3 is PNG media_image9.png 92 148 media_image9.png Greyscale . (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-6 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by García-López et al. (Nano Lett. 2015, 15, 8229-8239). Garcia-Lopez et al. (Nano. Lett. 2015, 15, 8229-8239) teaches of the nanomachine light-driven motors comprising fluorophores PNG media_image10.png 327 464 media_image10.png Greyscale (abstract; Figure 1.) The nanomachine is activated by UV light and provides for subsequent rotation of the motor (p8230, left column, second paragraph; p8234, right column, first paragraph; p8235, right column, last paragraph). The USN-1 anticipates the PNG media_image11.png 196 558 media_image11.png Greyscale of the instant claims. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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) 1 and 7-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Koumura et al. (J. Am. Chem. Soc. 2002, 124, 5037-5051) in view of Bell et al. (US 2011/0077394A1) Koumura et al. (J. Am. Chem. Soc. 2002, 124, 5037-5051) discloses the molecular motors as well as that stated above. Koumura et al. does not disclose the targeting agent, tracing agent, solubility agent or active agent of the instant claims 7-10. Bell et al. (US 2011/0077394A1) discloses nanometer-scale rotary molecular motors powered and controlled by light energy wherein the design of the molecular motors can be designed so that the rotary direction, drive light wavelength and other physical characteristics can varied. The molecular motor can be chemically functionalized, integrated into or attached to a variety of structures (abstract; p1, [0009]). The molecular motors comprise PNG media_image12.png 156 128 media_image12.png Greyscale wherein E and Em comprise CH,CH2; A is CR; G comprises CR Cb comprises a carbocyclic or heterocyclic group (p2, [0039]; p9, [0061-0067]). The molecular motors can be used for making holes in membranes by attaching compounds of the invention to or embedding them in a membrane creates a point of insertion or the ability to make a hole in the membrane at the location of the compound. For example, light activated motion of a rotor embedded in a lipid bilayer will increase the disorder of the membrane. Changes in membrane disorder will alter access of various molecules through the holes in the membrane. In the cellular environment, compounds of the invention may be used to disrupt the cellular membrane allows access of pharmaceuticals through the membrane (p13, [0095]). The molecular motors can be inserted into relaxed, covalently closed circular DNA or synthetic polymers. The molecular motors can incorporate PEG or peptide fragments to improve water solubility (p2, [0031]; p12, [0082]; p13, [0102]; p15, [0111]). The molecular motors can be targeted to selective membrane layers by use of antibody coupling (p13, [0095]). The molecular motors can be visualized using Cyvr green dyes intercalated into the DNA via strong fluorescence (p20, [0148]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of Koumura et al. can be used to target lipid membrane layers via coupling to an antibody targeting moiety as Bell et al. teaches of targeting molecular motors to lipid membrane layers via an antibody for the advantage of allowing pharmaceuticals/drugs through the membrane due to membrane disorder/hole. The antibody targeting moiety encompasses the antibody targeting agent of the instant claims. The pharmaceuticals/drugs encompasses the drug active agent of the instant claims. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of Koumura et al. can be detected after insertion into relaxed, covalently closed circular DNA as Bell et al. teaches that molecular motors can be visualized via strong fluorescence using Cyvr green dyes intercalated into the DNA. The Cyvr green dyes encompasses the dye tracing agent of the instant claims. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of Koumura et al. comprise PEG or peptide fragments as Bell et al. teaches that the molecular motors incorporate PEG or peptide fragments for the advantage of improving water solubility. The PEG or peptide fragments encompasses the solubilizing agent of the instant claims. Claim(s) 1-4 and 7-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over ter Wiel et al. (Org. Biomol. Chem. 2005, 3, 28-30) in view of Bell et al. (US 2011/0077394A1). ter Wiel et al. (Org. Biomol. Chem. 2005, 3, 28-30) discloses the molecular motors as well as that stated above. ter Wiel et al. does not disclose the targeting agent, tracing agent, solubility agent or active agent of the instant claims 7-10. Bell et al. (US 2011/0077394A1) discloses nanometer-scale rotary molecular motors powered and controlled by light energy wherein the design of the molecular motors can be designed so that the rotary direction, drive light wavelength and other physical characteristics can varied as well as that stated above. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of ter Wiel et al. can be used to target lipid membrane layers via coupling to an antibody targeting moiety as Bell et al. teaches of targeting molecular motors to lipid membrane layers via an antibody for the advantage of allowing pharmaceuticals/drugs through the membrane due to membrane disorder/hole. The antibody targeting moiety encompasses the antibody targeting agent of the instant claims. The pharmaceuticals/drugs encompasses the drug active agent of the instant claims. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of ter Wiel et al. can be detected after insertion into relaxed, covalently closed circular DNA as Bell et al. teaches that molecular motors can be visualized via strong fluorescence using Cyvr green dyes intercalated into the DNA. The Cyvr green dyes encompasses the dye tracing agent of the instant claims. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of ter Wiel et al. comprise PEG or peptide fragments as Bell et al. teaches that the molecular motors incorporate PEG or peptide fragments for the advantage of improving water solubility. The PEG or peptide fragments encompasses the solubilizing agent of the instant claims. Claim(s) 1-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Garcia-Lopez et al. (Nano. Lett. 2015, 15, 8229-8239) in view of Bell et al. (US 2011/0077394A1). Garcia-Lopez et al. (Nano. Lett. 2015, 15, 8229-8239) discloses the nanomachine light-driven motors as well as that stated above. Garcia-Lopez et al. does not disclose the targeting agent, tracing agent, solubility agent or active agent of the instant claims 7-10. Bell et al. (US 2011/0077394A1) discloses nanometer-scale rotary molecular motors powered and controlled by light energy wherein the design of the molecular motors can be designed so that the rotary direction, drive light wavelength and other physical characteristics can varied as well as that stated above. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of Garcia-Lopez et al. can be used to target lipid membrane layers via coupling to an antibody targeting moiety as Bell et al. teaches of targeting molecular motors to lipid membrane layers via an antibody for the advantage of allowing pharmaceuticals/drugs through the membrane due to membrane disorder/hole. The antibody targeting moiety encompasses the antibody targeting agent of the instant claims. The pharmaceuticals/drugs encompasses the drug active agent of the instant claims. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of Garcia-Lopez et al. can be detected after insertion into relaxed, covalently closed circular DNA as Bell et al. teaches that molecular motors can be visualized via strong fluorescence using Cyvr green dyes intercalated into the DNA. The Cyvr green dyes encompasses the dye tracing agent of the instant claims. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the molecular motors of Garcia-Lopez et al. comprise PEG or peptide fragments as Bell et al. teaches that the molecular motors incorporate PEG or peptide fragments for the advantage of improving water solubility. The PEG or peptide fragments encompasses the solubilizing agent of the instant claims. 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. Claims 1-10 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-15 and 19-31 of U.S. Patent No. 11,154,623B2. Although the claims at issue are not identical, they are not patentably distinct from each other because the molecules used for the method of opening a lipid bilayer of U.S. Patent No. 11,154,623B2 comprise a targeting agent, tracing agent, solubilizing agent and active agent have analogous structures to that of the molecules of the instant claims further comprising a targeting agent, tracing agent, solubilizing agent and active agent. The structures of the molecules of U.S. Patent No. 11,154,623B2 comprises PNG media_image13.png 106 246 media_image13.png Greyscale wherein R1 and R2 are comprise hydrogen, alkane, alkene, alkynes, alcohols, etc. that encompass the compounds of the instant claims that comprise PNG media_image14.png 214 564 media_image14.png Greyscale wherein R1 and R2 comprise hydrogen, alkane, alkene, alkynes, alcohols, etc. Claims 1-4 and 7-10 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-4 and 10-18 of U.S. Patent No. 11,565,003B2. Although the claims at issue are not identical, they are not patentably distinct from each other because the molecular motors used for the method of causing cell death by opening a lipid bilayer of the cell of U.S. Patent No. 11,565,003B2 have analogous structures to that of the molecules of the instant claims further comprising a targeting agent, tracing agent, solubilizing agent and active agent. The structures of the molecular motors of U.S. Patent No. 11,565,003B2 comprises PNG media_image15.png 74 238 media_image15.png Greyscale bound to PNG media_image16.png 72 144 media_image16.png Greyscale wherein X is CH2, S and R1 and R2 comprise hydrogen, alkane, alkene, alkynes, etc. that encompass the compounds of the instant claims that comprise PNG media_image15.png 74 238 media_image15.png Greyscale bound to PNG media_image17.png 164 356 media_image17.png Greyscale wherein X is CH2, S and R1 and R2 comprise hydrogen, alkane, alkene, alkynes, etc. Claims 1-5 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-6,11-18,22,23-27,30-49 and 52-61 of copending Application No. 19/115,760 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the molecular machines used in the method of treating a fungal infection in a patient, method of treating a disease or disorder in a patient caused by an infection of a microorganism, method of treating cancer in a patient of copending Application No. 19/115,760 have analogous structures to that of the molecules of the instant claims. The structures of the molecular motors of copending Application No. 19/115,760 comprises PNG media_image18.png 70 156 media_image18.png Greyscale bound to PNG media_image19.png 86 168 media_image19.png Greyscale wherein X is CH2, S and R1, R1’ comprise hydrogen, alkyl, etc.; R2 may be absent when n is 0 and R3 is hydrogen, alkynyl, etc. that encompass the compounds of the instant claims that comprise PNG media_image15.png 74 238 media_image15.png Greyscale bound to PNG media_image17.png 164 356 media_image17.png Greyscale wherein X is CH2, S and R1 and R2 comprise hydrogen, alkane, alkene, alkynes, etc. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claims 1-6 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1,7,8,10,13,14,27,30,32,38,41,46,48 and 49 of copending Application No. 19/125,733 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the stimulus-responsive molecular machines (when n is 0) used for the method of inducing an intercellular calcium wave (ICW) of copending Application No. 19/125,733 have analogous structures to that of the molecules of the instant claims. The structures of the molecular motors of copending Application No. 19/125,733 comprises PNG media_image20.png 80 166 media_image20.png Greyscale bound to PNG media_image19.png 86 168 media_image19.png Greyscale wherein X is CH2, S; R2 may be absent when n is 0 and R3 is hydrogen, alkynyl, etc. that encompass the compounds of the instant claims that comprise PNG media_image15.png 74 238 media_image15.png Greyscale bound to PNG media_image17.png 164 356 media_image17.png Greyscale wherein X is CH2, S and R1 and R2 comprise hydrogen, alkane, alkene, alkynes, etc. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion No claims are allowed at this time. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MELISSA JEAN PERREIRA whose telephone number is (571)272-1354. The examiner can normally be reached M9-3, T9-3, W9-3, Th9-2, F9-2. 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, Michael Hartley can be reached at 571-272-0616. 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. /MELISSA J PERREIRA/ Examiner, Art Unit 1618
Read full office action

Prosecution Timeline

Jan 04, 2023
Application Filed
Aug 27, 2026
Non-Final Rejection mailed — §102, §103, §DP (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
52%
Grant Probability
78%
With Interview (+25.8%)
3y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 836 resolved cases by this examiner. Grant probability derived from career allowance rate.

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