Prosecution Insights
Last updated: July 14, 2026
Application No. 17/764,836

COMBINATION OF CICLOPIROXOLAMINE AND PIROCTONE OLAMINE FOR COMBATING DANDRUFF

Non-Final OA §103
Filed
Mar 29, 2022
Priority
Sep 30, 2019 — FR FR1910808 +1 more
Examiner
MAEWALL, SNIGDHA
Art Unit
1612
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Pierre Fabre Dermo-cosmetique
OA Round
3 (Non-Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
69%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
625 granted / 1064 resolved
-1.3% vs TC avg
Moderate +10% lift
Without
With
+10.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
46 currently pending
Career history
1112
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
68.6%
+28.6% vs TC avg
§102
1.4%
-38.6% vs TC avg
§112
1.7%
-38.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1064 resolved cases

Office Action

§103
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 . Detailed Action Previous Rejections Applicants' arguments, filed 02/09/26, 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 Rejections and/or objections not reiterated from previous office actions are hereby withdrawn.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. 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. Claims 14-16 and 27 are rejected under 35 U.S.C. 103 as being unpatentable over Pitner et al. (US PG Pub. 2012/0058057) in view of Bortolin et al. (US PG Pub. 2011/0015120) and Kraemer et al. (US PG Pub. 2003/0012749). Pitner et al. discloses anti-dandruff agents, see title. Pitner et al. teaches a composition comprising special ammonium carboxylates, see abstract. Pitner et al. suggests that the formulation can include piroctone and ciclopiroxolamine as an active ingredients, see [0159], [0163] and claim 8. Pitner does not exemplify explicit use of ciclopiroxolamine as an active ingredients, in treating seborrhoeic dermatitis or dandruff. Bortolin et al. teaches pharmaceutical and cosmetic composition comprising ciclopirox, see title. Bortolin et al. teaches that said composition are used in the treatment of dermatological disorders such as seborrhoeic dermatitis and dandruff, see abstract. The reference teaches use of ciclopiroxolamine used in seborrhoeic dermatitis and dandruff, see [0006-0007], [0100] and [0102] and [0104]. The formulation can be in the form of a lotion, cream or shampoo, see [0043]. The amount disclosed is 0.5% in [0050] and example 2. Kraemer et al. teaches antimycotically active substance such as hydroxypyridone, ciclopiroxolamine and piroctone, see claim 8. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have utilized as an active ingredient, ciclopiroxolamine and piroctone for treating seborrhoeic dermatitis and dandruff as taught by Pitner et al. One of ordinary skill would have been motivated to do so because Pitner suggests use of active ingredient such as ciclopiroxolamine and piroctone can be used in treating dandruff, Bortolin teaches use of ciclopiroxolamine used in seborrhoeic dermatitis and dandruff, see [0006-0007], [0100], [0102] and [0104] and Kraemer et al. teaches hydroxypyridone such as ciclopiroxolamine and piroctone are antimycotically active substance. The expected result would be treatment of seborrheic dermatitis and dandruff by using ciclopiroxolamine and piroctone on the hair or scalp applied topically and furthermore application of the composition comprising the two ingredients and repeating the step of applying and rinsing would have been obvious to one of ordinary skill in the art for optimum results. Applicant argues about Pitner et al. that paragraphs [0159] and [0163] of Pitner et al. '057 are part of the examples. They disclose lists of compounds that could be added to the formulations disclosed in the tables in paragraphs [0158] and [0160], respectively. These formulations all contain a specific antifungal active ingredient (i.e., compound 1136). This compound is present in all the formulations in these tables, in proportions ranging from 0.01% to 2% of the formulation. This compound was selected for its fungicidal activity against Malassezia furfur (see paragraph [0150] of Pitner et al. '057). The compound is particularly suitable for anti-dandruff compositions (paragraph [0152] of Pitner et al. '057). As such, the formulations disclosed in paragraphs [0159] and [0163] of Pitner et al. '057 do not contain only the combination of ciclopiroxolamine and piroctone olamine as antifungal active ingredients… Pitner et al. '057 do not disclose or suggest the administration of the combination of ciclopiroxolamine and piroctone olamine for the treatment of seborrheic dermatitis. These arguments are not persuasive because the open-ended comprising language of instant claims do not preclude reading any other component into the claims. Applicant further argues that Bortolin et al. '120 disclose administering ciclopiroxolamine only with two other active ingredients, etidronic acid and lactoferrin. Indeed, Bortolin et al. '120 disclose the use of ciclopiroxolamine in the treatment of seborrheic dermatitis and dandruff, but only in combination with etidronic acid and/or lactoferrin (paragraph [0011]). When ciclopiroxolamine is used alone, its activity is reduced due to the presence of ferric ions from stainless steel production systems and equipment used in pharmaceutical and cosmetic compositions or present in excipients used in the production of such compositions (paragraph [0008] of Bortolin et al. '120). These arguments are not persuasive because Combination of cicloporoxolamine and piroctone olamine was known in the art for treating dandruff as discussed above and one of ordinary skill would have chosen the two ingredients for treating dandruff with the expectation of obtaining similar results of treating dandruff results. Additionally, the open-ended comprising language of instant claims do not preclude reading any other component into the claims. According to Applicant, Kraemer does not overcome the deficiencies of the references discussed above. The rationale for using Kraemer has been discussed above. The rejections are therefore maintained. Claims 17-21 and 23-26 are free of art. The closest prior art of record does not teach the synergistic effect in treating seborrheic dermatitis and synergistic anti-dandruff effect by administration of effective amounts of sole active ingredients, ciclopiroxolamine and piroctone olamine as claimed and demonstrated in the instant specification in Tables 1-2 and pages 14-17. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to SNIGDHA MAEWALL whose telephone number is (571)272-6197. The examiner can normally be reached Monday thru Friday; 8:30 AM to 5PM. 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 S. Kaup can be reached at 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. /SNIGDHA MAEWALL/Primary Examiner, Art Unit 1612
Read full office action

Prosecution Timeline

Mar 29, 2022
Application Filed
Jan 30, 2025
Non-Final Rejection mailed — §103
May 30, 2025
Response Filed
Sep 09, 2025
Final Rejection mailed — §103
Feb 09, 2026
Request for Continued Examination
Feb 11, 2026
Response after Non-Final Action
Apr 08, 2026
Non-Final Rejection mailed — §103 (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

3-4
Expected OA Rounds
59%
Grant Probability
69%
With Interview (+10.4%)
3y 4m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1064 resolved cases by this examiner. Grant probability derived from career allowance rate.

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