Prosecution Insights
Last updated: April 19, 2026
Application No. 17/423,793

USE OF COOLING MATERIALS FOR THE REDUCTION OR INHIBITION OF SALTINESS IN ORALLY ADMINISTERED, IMBIBED OR INGESTED CONSUMER PRODUCTS

Final Rejection §103
Filed
Jul 16, 2021
Examiner
ROBERTS, LEZAH
Art Unit
1612
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Takasago International Corporation
OA Round
2 (Final)
48%
Grant Probability
Moderate
3-4
OA Rounds
4y 4m
To Grant
85%
With Interview

Examiner Intelligence

Grants 48% of resolved cases
48%
Career Allow Rate
363 granted / 750 resolved
-11.6% vs TC avg
Strong +36% interview lift
Without
With
+36.4%
Interview Lift
resolved cases with interview
Typical timeline
4y 4m
Avg Prosecution
78 currently pending
Career history
828
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
49.2%
+9.2% vs TC avg
§102
18.1%
-21.9% vs TC avg
§112
16.0%
-24.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 750 resolved cases

Office Action

§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 . Applicants' arguments, filed September 29, 2025, have been fully considered. Rejections and/or objections not reiterated from previous office actions are hereby withdrawn. The following rejections and/or objections are either reiterated or newly applied. They constitute the complete set presently being applied to the instant application. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims Claim Rejections - 35 USC § 103 – Obviousness (Maintained Modified Rejections) 1) Claims 34-37 and 40-42 are rejected under 35 U.S.C. 103 as being unpatentable over Oertling et al. (US 20110081303). The rejection is maintained. Oertling et al. disclose teeth cleaning compositions with reduced bitter sensation. A tooth cleaning compound according to the invention contains menthol and a quantity, for masking the bitterness of the menthol, of menthane carboxylic acid-N-(4-methoxyphenyl)-amide (WS-12) (Abstract). Teeth cleaning compounds currently available in the market for use with a toothbrush, in particular toothpastes, tooth cremes, tooth cleaning gels and tooth powders, these days usually contain a relatively large number of agents, e.g. to act against caries, dental plaque, gingivitis, dental neck sensitivity, dental calculus formation, bad breath, and so on. These agents are often accompanied by highly unpleasant taste impressions, so that the said teeth cleaning compounds are normally highly flavored. Substances such as triclosan, potassium or zinc citrate, tin chloride, tin fluoride, amine fluoride, or cetylpyridinium chloride can for example lead to salty, metallic, acrid, bitter, astringent, anaesthetizing, burning, soapy or stale taste notes (paragraph 0006). Cooling agents may be used in the compositions and include menthyl acetate, l-menthoxy-1,2-propanediol and p-menthane-3,8-diol (paragraph 0101). Flavoring agents are used and the flavoring agent composition comprises menthol and a quantity of menthane carboxylic acid-N-(4-methoxyphenyl)-amide (WS-12) to mask the bitterness of the menthol (paragraphs 0014 to 0016). In particular the flavoring agent composition to be used according to the invention with the components a) menthol, b) WS-12 and c) one or more further flavoring agents, masks unpleasant, above all bitter or metallic, taste impressions, such as those caused by substances such as zinc citrate, zinc sulfate, poly- and pyrophosphates, bicarbonates (e.g. sodium bicarbonate), strontium- and potassium salts (for example potassium citrate, potassium nitrate, potassium chloride, strontium chloride), tin pyrophosphate, tin chloride, aluminum lactate and mixtures thereof (paragraph 0113). The flavoring agents comprise 0.5% WS-12 (Examples). A bleach toothpaste comprises 5% sodium bicarbonate (at least 5%), 2% sodium carbonate and 1.25% of the flavoring agent (II, paragraph 0209). When 1.25% of the flavoring agent is added to the final composition, 0.0065% WS-12 (instant claim 40) is present in the final composition. A second composition comprises 15% sodium bicarbonate (at least 10%), 2% sodium carbonate and 1.5% of the flavoring agent (III, paragraph 0209). When 1.5% of the flavoring agent is added to the final composition, 0.0078% WS-12 (instant claim 40) is present in the final composition. Oertling et al. differ from the instant claims insofar as they do not specifically disclose that it is menthyl acetate, l-menthoxy-1,2-propanediol or p-menthane-3,8-diol that masks the salty taste of a salt, such as sodium bicarbonate. However it would have been obvious to one of ordinary skill in the art prior to filing the instant application to have used a flavor combination comprising menthyl acetate, l-menthoxy-1,2-propanediol or p-menthane-3,8-diol to mask, reduce or inhibit, the salty taste of sodium bicarbonate because the flavor masks unpleasant taste impressions of salts such as bicarbonates. Response to Arguments The Examiner submits that the flavoring agents comprise cooling agents. It would have been obvious to have used menthyl acetate, l-menthoxy-1,2-propanediol and p-menthane-3,8-diol as a cooling agent in the flavoring compositions of Oertling et al. to mask unpleasant taste because it is suggested by Oertling et al. In regards to bitter taste and salty taste, Oertling discloses unpleasant taste. One of ordinary skill in the art would recognize that this would include salty taste. Further, Oertling et al. specifically states that the flavoring agents masks unpleasant, above all bitter or metallic, taste impressions, such as those caused by substances such as triclosan, zinc citrate, zinc sulfate, poly- and pyrophosphates, and bicarbonates (e.g. sodium bicarbonate), which is the salt of instant claims 37. Therefore, the flavoring compositions would mask the salty taste of sodium bicarbonate. In regards to WS-12 being necessary, Oertling et al. disclose cooling agents may be used in addition to WS-12, which include those recited by the instant claims. Therefor is nothing in the instant claims that exclude WS-12. Therefore, when the cooling agents such as l-menthoxy-1,2-propanediol and p-menthane-3,8-diol are used in the composition of Oertling et al., this will meet the method of the instant claims. In regards to the cooling agents not masking bitter taste, nothing in the claims exclude WS-12. Further cooling agents are used in conjunction with WS-12 and include components recited in the instant claims. Therefore, one of ordinary skill in the art would reasonably conclude that the cooling agents, l-menthoxy-1,2-propanediol and p-menthane-3,8-diol, would aid in the masking of bitter or salty tastes. 2) Claims 34-36 and 38-42 are rejected under 35 U.S.C. 103 as being unpatentable over Akaha et al. (JP 2008115114) in view of Oertling et al. (US 20110081303). The rejection is maintained. Akaha et al. disclose dentifrice compositions comprising 0.5 to 10% sodium chloride. Sodium chloride is mixed with other components in the dentifrice compositions. The compositions comprise perfumes such as 3-l-mentoxypropane-1,2-diol, thymol, linalool, linalyl acetate, limonene, menthone, menthyl acetate, N-substituted-paramentane-3-carboxamide. The perfumes/fragrances/flavors comprise 0.000001 to 1% by weight of the compositions, meeting instant claim 40 or 0.01 to 1% by weight (Abstract). Dentifrice compositions include toothpaste (page 4, BEST-MODE). Akaha et al. differ from the instant claims insofar as they do not disclose perfumes such as 3-l-mentoxypropane-1,2-diol mask the salty taste of sodium chloride. Oertling et al. are discussed above and disclose that a flavoring agent is used and the flavoring agent composition comprises menthol and a quantity of menthane carboxylic acid-N-(4-methoxyphenyl)-amide (WS-12). In particular the flavoring agent composition to be used according to the invention, with the components a) menthol, b) WS-12 and c) one or more further flavoring agents, masks unpleasant, above all bitter or metallic, taste impressions, such as those caused by substances such as zinc citrate, zinc sulfate, poly- and pyrophosphates, bicarbonates (e.g. sodium bicarbonate), strontium- and potassium salts (for example potassium citrate, potassium nitrate, potassium chloride, strontium chloride), tin pyrophosphate, tin chloride, aluminum lactate and mixtures thereof (paragraph 0113). The perfumes/fragrances/flavors comprise 0.000001 to 1% by weight of the compositions, meeting instant claim 40 or 0.01 to 1% by weight (Abstract). It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have added 3-l-mentoxypropane-1,2-diol or flavor combinations comprising 3-l-mentoxypropane-1,2-diol to mask, reduce or inhibit, the salty taste and improve the taste of the toothpaste compositions because it is suggested as a perfume by Akaha et al. and because flavors can also mask unpleasant, above all bitter or metallic, taste impressions, such as those caused by substances such as salts as disclosed by Oertling et al. It would also have been obvious to one of ordinary skill in the art prior to filing the instant application to have added flavor agent compositions comprising carboxylic acid-N-(4-methoxyphenyl)-amide to mask, reduce or inhibit, the salty taste and improve the taste of the toothpaste of Akaha et al. because they can mask unpleasant, above all bitter or metallic, taste impressions, such as those caused by substances such as salts as disclosed by Oertling et al. In regards to the at least 5 and 10% salt, Akaha et al. disclose a range of 0.5 to 10% sodium chloride, wherein 10% would meet at about 5% and at least 10% (instant claim 39) salt. Response to Arguments The Examiner submits that the flavoring agents comprise cooling agents. It would have been obvious to have used menthyl acetate, l-menthoxy-1,2-propanediol and p-menthane-3,8-diol as a cooling agent in the flavoring compositions comprising WS-12 of Oertling et al. in the composition of Akaha et al. to mask unpleasant tastes because it is suggested by Oertling et al. In regards to not discussing salty taste, Oertling et al. specifically discloses masking sodium bicarbonate, which is a compound with a salty taste. Therefore the rejection is maintained. Conclusion Claims 34-42 are rejected. No claims allowed. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LEZAH ROBERTS whose telephone number is (571)272-1071. The examiner can normally be reached Monday-Friday 11:00-7:30. 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, Sahana Kaup can be reached on 571-272-6897. 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. /LEZAH ROBERTS/ Primary Examiner, Art Unit 1612
Read full office action

Prosecution Timeline

Jul 16, 2021
Application Filed
Mar 22, 2025
Non-Final Rejection — §103
Sep 29, 2025
Response Filed
Jan 24, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12594229
Personal Care Compositions and Methods for the Same
2y 5m to grant Granted Apr 07, 2026
Patent 12594241
TOPIRAMATE ORAL LIQUID SUSPENSION AND USE THEREOF
2y 5m to grant Granted Apr 07, 2026
Patent 12582583
ORAL CARE PRODUCT COMPRISING AN ORAL CARE RHEOLOGICAL SOLID COMPOSITION
2y 5m to grant Granted Mar 24, 2026
Patent 12558387
MULTI-VIRUS ANTI-INFECTIVITY AND PRO-IMMUNITY ASSEMBLY
2y 5m to grant Granted Feb 24, 2026
Patent 12551417
STABILIZED STANNOUS COMPOSITIONS
2y 5m to grant Granted Feb 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
48%
Grant Probability
85%
With Interview (+36.4%)
4y 4m
Median Time to Grant
Moderate
PTA Risk
Based on 750 resolved cases by this examiner. Grant probability derived from career allow 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