Prosecution Insights
Last updated: April 19, 2026
Application No. 19/200,771

SYNTHETIC POLYISOPRENE LATEX CONDOMS WITH REDUCED NITROSAMINE

Non-Final OA §103§112§DP
Filed
May 07, 2025
Examiner
MCCARTHY, GINA
Art Unit
3786
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Thai Nippon Rubber Industry Public Company Limited
OA Round
1 (Non-Final)
48%
Grant Probability
Moderate
1-2
OA Rounds
3y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 48% of resolved cases
48%
Career Allow Rate
82 granted / 169 resolved
-21.5% vs TC avg
Strong +56% interview lift
Without
With
+55.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
34 currently pending
Career history
203
Total Applications
across all art units

Statute-Specific Performance

§101
5.7%
-34.3% vs TC avg
§103
44.0%
+4.0% vs TC avg
§102
18.9%
-21.1% vs TC avg
§112
28.1%
-11.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 169 resolved cases

Office Action

§103 §112 §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 . Specification The disclosure is objected to because of the following informalities: The Brief Description of the Drawings fails to provide individual figure descriptions for each figure. Instead, it recites “Figs. 2-4 are illustrative representations of the condom in various rolled and unrolled configurations” and does not indicate specifically which figure pertains to which configuration. For example, if accurate, the description could be amended to recite: -- Fig. 2 is a perspective view of the condom in an unrolled form. Fig. 3 is a perspective view of a condom in a rolled up form. Fig. 4 is a top view of a condom in a rolled up form.--. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 6 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 6 recites the limitation "the pre-vulcanized synthetic polyisoprene latex " in lines 1-2. There is insufficient antecedent basis for this limitation in the claim. For the purposes of examination, the limitation will be interpreted as –The condom of claim 1, wherein the synthetic polyisoprene latex is a pre-vulcanized synthetic polyisoprene latex, wherein the pre-vulcanized synthetic polyisoprene latex has a swelling index of 130% --. 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) 1 and 4-6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ozawa (US 6187857) in view of Chen (US 2019/0177496). Regarding claim 1, Ozawa discloses a rubber article dip-formed (used in medical articles that come in contact with the human body, col. 1, lines 25-34, col. 2, lines 59-62) comprising: a. a latex (vulcanizable dip-forming rubber latex composition, col. 2, lines 20-62, a rubber article dip-formed from vulcanizable dip-forming rubber latex composition) synthesized from a latex emulsion, comprising: i. synthetic polyisoprene latex having; ii. accelerators, each containing nitrogen, including: 1. zinc diethydithicarbamate; 2. zinc dibenzyldithiocarbamate; 3. zinc dibutyldithiocarbamate; and iii. water (As to claim 1, the limitation, “a. a latex synthesized from a latex emulsion, comprising: i. synthetic polyisoprene latex having; ii. accelerators, each containing nitrogen, including: 1. zinc diethydithicarbamate; 2. zinc dibenzyldithiocarbamate; 3. zinc dibutyldithiocarbamate; and iii. water” is drawn to an article of manufacture, and therefore the limitation is considered to be a product-by-process limitation that is given patentable weight only for the structural limitations imparted to the final product by the process. When a claim is directed to a device, the process steps are not germane to the issue of patentability. As set forth in MPEP 2113, product by process claims are not limited to the manipulation of the recited steps, only the structure implied by the steps. Once a product appearing to be substantially the same or similar is found, a 35 USC 102/103 rejection may be made and the burden is shifted to applicant to show an unobvious difference. “Even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985). Here, a synthesizing process includes synthesized from a particular mixture in the process steps but as the product in the product-by-process claim [rubber article dip-formed] is the same as or obvious from Ozawa, the process limitations are met), wherein the rubber article dip-formed releases less than 10 ppb (parts per billion) of nitrosamine (col. 6, lines 10-23, the content of the nitrosamines in a rubber article-dip formed can be controlled to zero or a negligible amount. The amount of the nitrosamine extracted from the rubber article dip-formed therefrom is generally not larger than 1ppm; NOTE: zero is less than 10 ppb and additionally 1 ppm is equal to 0.01 ppb which is less than 10 ppb) and the rubber article dip-formed contains nitrogen (col. 2, lines 1-63, col. 3, lines 1-33, a vulcanizable dip-forming rubber latex composition characterized as comprising an unsaturated nitrile conjugated diene copolymer rubber latex, a sulfur containing vulcanizer, at least one vulcanization accelerator selected from dithiocarbamic acid compounds represented by the formula (1); NOTE: it is inherent that a nitrile contains nitrogen and thus the vulcanizable dip-forming rubber latex composition contains nitrogen as it contains a nitrile conjugated diene copolymer rubber latex thus so does the rubber article-dip formed from the vulcanizable dip-forming rubber latex composition contain the rubber latex and the nitrile; ALSO NOTE: as seen in the formula (1), col. 2, lines 35-45, the chemical structure of dithiocarbamic acids have nitrogen in the structure, and as the vulcanizable dip-forming rubber latex composition comprises dithiocarbamic acid which has nitrogen it is implied the rubber article dip-formed with the dip-forming rubber latex composition contains nitrogen via the dithiocarbamic acid in the vulcanizable dip-forming rubber latex composition). Ozawa does not disclose that the rubber article dip-formed is a condom. Chen teaches an analogous latex ([0039], latex formulation) and an analogous rubber articled dip-formed ([0008], elastomeric articles are generally manufactured using a latex dipping process, the molds are dipped into a compounded latex such that a film of coagulated rubber particles is dissolved thereon) that is a condom ([0008]; [0039], the latex formation may be used to form elastomeric articles that may include condoms). It would have been obvious to one having ordinary skill in the art, before the effective filing date of the invention, to provide that the rubber article dip-formed of Ozawa, is a condom, as taught by Chen, in order to provide an improved invention that facilitates formation of a specific type of desired elastomeric article (Chen, [0039]). Ozawa in view of Chen discloses the invention as described above and the combination further discloses wherein the condom releases less than 10 ppb (ppm) of nitrosamine and the condom contains nitrogen (as described above the with regard to Ozawa, the rubber article dip-formed releases less than 10 ppb of nitrosamine and in the combination the rubber article dip-formed is a condom and thus it would follow that the condom releases less than 10 ppb of nitrosamine as does the material with which it is made) and the condom contains nitrogen (as described above the vulcanizable dip-forming rubber latex composition that contains nitrogen is used to make the rubber article dip-formed per the disclosure of Ozawa and thus the article contains nitrogen and in the combination Chen teaches the rubber article dip-formed is a condom thus in the combination the condom contains nitrogen). Regarding claim 4, Ozawa in view of Chen discloses the invention as described above. The combination further discloses wherein the latex is cured at a temperature from 90°C and 120°C for a period of 5 to 20 minutes (The limitation of curing the latex is a produce-by-process limitation. “Even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the claim was made by a different process.” In re Thorpe, 111 F. 2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985) (citations omitted).; NOTE: the product [condom] in the product-by-process claim is the same as or obvious from the product of Ozawa in view of Chen, thus the process limitations are met). Regarding claim 5, Ozawa in view of Chen discloses the invention as described above with regard to claim 1. The combination further discloses wherein the condom releases less than 1 ppb of nitrosamine (Ozawa, col. 6, lines 10-23, the content of the nitrosamines in a rubber article-dip formed can be controlled to zero or a negligible amount. The amount of the nitrosamine extracted from the rubber article dip-formed therefrom is generally not larger than 1 ppm; NOTE: zero is less than 10 ppb and 1 ppm is equal to 0.01 ppb which is less than 10 ppb; in the combination, Chen teaches the rubber dip-formed article is a condom and thus the condom releases less than 1 ppb of nitrosamine in the combination). Regarding claim 6, Ozawa in view of Chen discloses the invention as described above with regard to claim 1. The combination further discloses wherein the pre-vulcanized synthetic polyisoprene latex has a swelling index of 130% (The latex emulsion from which the condom is synthesized comprises pre-vulcanized synthetic polyisoprene latex that has a swelling index of 130%, which limitation is a product-by-process-limitation. “Even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the claim was made by a different process.” In re Thorpe, 111 F. 2d 695, 698, 227 USPQ 964, 966 [Fed. Cir. 1985] [citations omitted].; NOTE: the product [condom] in the product-by-process claim is the same as or obvious from the product of Ozawa in view of Chen, thus the process limitations pertaining to a swelling index of the pre-vulcanized synthetic polyisoprene latex in the emulsion used to make the condom are met). Claim(s) 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ozawa (US 6187857) in view of Chen (US 2019/0177496), as applied to claim 1 above and further in view of Chiaokun (US 2017/0049608). Regarding claim 2, Ozawa in view of Chen discloses the invention as described above with regard to claim 1. Ozawa in view of Chen does not disclose wherein the condom has a width of 49 mm to 60 mm and a length of minimum 160 mm with a thickness of 0.045 mm to 0.090 mm. Chiaokun teaches an analogous condom ([0002]) wherein the condom has a width of 49 mm to 60 mm (Condoms can be formed with…a nominal width or diameter at a midpoint of the condom in a non-stressed condition of between 49-58 mm, [0002]; NOTE: values of this range fall within the claimed range) and a length of minimum 160mm (Condoms can be formed with a length of greater than 180 mm, [0002]; NOTE: values greater than 180 fall within the claimed range) with a thickness of 0.045 mm to 0.090 mm (Condoms can be formed in various thicknesses ranging between 0.03-0.09 mm, [0002]); NOTE: values within this range fall within the claimed ranged). It would have been obvious to one having ordinary skill in the art, before the effective filing date of the invention, to provide that the condom of Ozawa in view of Chen has a width of 49 mm to 60 mm and a length of minimum 160 mm with a thickness of 0.045 mm to 0.090 mm, as taught by Chiaokun, in order to provide an improved synthetic polyisoprene latex condom article that facilitates providing a condom which is a thin sheath worn on a man’s penis during intercourse (Chiaokun, [0001]; [0002]). Further It would have been obvious to one having ordinary skill in the art, before the effective filing date of the invention, to provide that the condom of Ozawa in view of Chen and in further view of Chiaokun has a width of 49 mm to 60 mm and a length of minimum 160 mm with a thickness of 0.045 mm to 0.090 mm, as Applicant has appeared to place no criticality on the claimed range (Applicant’s specification recites “typically making the total thickness 45 to 80 microns, [0056]; NOTE: typical infers that it is not critical; Further, Applicant’s specification appears to be silent with regard to length and width evidencing non criticality) and since it has been held that “[i]n the case where the claimed ranges ‘overlap or lie inside ranges as disclosed by the prior art, a prima face case of obviousness exists.” In re Wertheim, 541 F. 2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). Claim(s) 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ozawa (US 6187857) in view of Chen (US 2019/0177496), as applied to claim 1 above and further in view of Lucas (US 2009/0272384). Regarding claim 3, Ozawa in view of Chen discloses the invention as described above. Ozawa in view of Chen does not disclose wherein the condom has a burst volume greater than 22 liters, and burst pressure of greater than 1 kPa. Lucas teaches an analogous condom ([0058]) that has a burst volume greater than 22 liters, and burst pressure of greater than 1kPa (See Table 6A entitled Burst Unage [200 pieces tested] showing for example that the first batch of synthetic PI has a MV [mean volume] of 53.20 (L) and an MP [mean pressure of 1.70 (kPa) which values fall within the claimed range of a burst volume greater than 22 liters and burst pressure of greater than 1kPa). It would have been obvious to one having ordinary skill in the art, before the effective filing date of the invention, to provide that the condom of Ozawa in view of Chen has a burst volume greater than 22 liters, and burst pressure of greater than 1kPa, as taught by Lucas, in order to provide an improved synthetic polyisoprene latex condom article that facilitates desired condom performance (Lucas, [0042] and is comparable to that of natural rubber and has adequate mechanical properties (Lucas, [0057]). Further, it would have been obvious to one having ordinary skill in the art, before the effective filing date of the invention, to provide that the condom article of Ozawa in view of Chen and in further view of Lucas, has a burst volume greater than 22 liters, and burst pressure of greater than 1kPa as Applicant has appeared to place no criticality on the claimed ranges (Applicant’s specification appears silent with regard to burst volume and burst pressure thereby evidencing no criticality) and since it has been held that “[i]n the case where the claimed ranges ‘overlap or lie inside ranges as disclosed by the prior art, a prima face case of obviousness exists.” In re Wertheim, 541 F. 2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). 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 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-6 of U.S. Patent No. 12,409,255 (reference patent). Although the claims at issue are not identical, they are not patentably distinct from each other because the application claims are a broader recitation than that of the patent. Claim 1 of the instant application recites: A condom comprising: a. a latex synthesized from a latex emulsion, comprising: i. synthetic polyisoprene latex having; ii. accelerators, each containing nitrogen, including:1. zinc diethydithicarbamate;2. zinc dibenzyldithiocarbamate;3. zinc dibutyldithiocarbamate; and iii. water, wherein the condom releases less than 10 ppb (parts per billion) of nitrosamine and the condom contains nitrogen. Claim 1 of the reference patent recites: A condom comprising: a. a latex synthesized from a pre-vulcanized latex emulsion, comprising: i. pre-vulcanized synthetic polyisoprene latex having a swelling index from 100% to 130%; ii. accelerators, each containing nitrogen, including: 1. zinc diethyldithiocarbamate; 2. zinc dibenzyldithiocarbamate; 3. zinc dibutyldithiocarbamate; and iii. an anionic surfactant wherein the anionic surfactant is sodium C14-17 alkyl sec sulfonate selected from the group consisting of alkyl sulphonates, alkyl aryl sulphonates, olefin sulphonates, and alcohol sulphates; and iv. water, wherein said condom has strength, is highly stretchable up to and about 900%, and wherein the condom releases less than 10 ppb (parts per billion) of nitrosamine and the condom contains nitrogen. Although the conflicting claims are not identical, they are not patentably distinct from each other because the difference between claim 1 of the current application and claim 1 of the reference patent lies in the fact that the reference patent claim includes many more elements and is thus much more specific. Thus, the invention of claim 1 of the reference patent is in effect a “species” of the “generic” invention of current application claim 1. It has been held that the generic invention is “anticipated” by the “species”. See In re Goodman, 29 USPQ2d 2010 (Fed. Cir. 1993). Since claim 1 of the current application is anticipated by claim 1 of the reference patent, it is not patentably distinct from claim 1 of the reference patent. Regarding claim 2, the limitations therein are substantially recited in claim 2 of the reference patent. Regarding claim 3, the limitations therein are substantially recited in claim 3 of the reference patent. Regarding claim 4, the limitations therein are substantially recited in claim 4 of the reference patent. Regarding claim 5, the limitations therein are substantially recited in claim 5 of the reference patent. Regarding claim 6, the limitations therein are substantially recited in claim 6 of the reference patent. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to GINA MCCARTHY whose telephone number is (408)918-7594. The examiner can normally be reached Monday - Friday, 7:00-3:30 PT. 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, Alireza Nia can be reached at 571-270-3076. 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. /G.M./Examiner, Art Unit 3786 /ALIREZA NIA/Supervisory Patent Examiner, Art Unit 3786
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Prosecution Timeline

May 07, 2025
Application Filed
Feb 13, 2026
Non-Final Rejection — §103, §112, §DP (current)

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Prosecution Projections

1-2
Expected OA Rounds
48%
Grant Probability
99%
With Interview (+55.8%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 169 resolved cases by this examiner. Grant probability derived from career allow rate.

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