Prosecution Insights
Last updated: April 19, 2026
Application No. 17/151,571

COMPOSITIONS AND METHODS FOR HAIR

Non-Final OA §103
Filed
Jan 18, 2021
Examiner
ROBERTS, LEZAH
Art Unit
1612
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
L'Oréal
OA Round
6 (Non-Final)
48%
Grant Probability
Moderate
6-7
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 in the Request for Continued Examination, filed December 9, 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 Rejections and/or objections not reiterated from previous office actions are hereby withdrawn.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. In regards to the Finality of the previous office action, the arguments are moot due to the filing of the Request for Continued Examination. Claims Claim Rejections - 35 USC § 103 – Obviousness (Revised Maintained Rejection) 1) Claims 67, 73-74, 77 and 87 are rejected under 35 U.S.C. 103 as being unpatentable over Johnson (US 2015/0150782) in view of Dussaud et al. (US 2018/0345048). Johnson discloses hair care compositions including osage orange. Amino acids may be used and include lysine (paragraph 0201). Amino acids comprise from 0.05% to about 1 wt%. The compositions are used to protect the hair form free radical damage (paragraphs 0008 and 0016). Conditioning agents may also be used and include hydrolyzed proteins in an amount ranging from 0.1 wt.% to about 3 wt. % (paragraph 0081). The compositions may also comprise conditioning agents and includes hydrolyzed proteins. The conditioning agents comprise 0.001 wt.% to 20 wt.% of the composition (paragraph 0081). The pH is most preferably between about 4.5 and about 7.5. The pH is adjusted by pH modifiers and comprise 0.01 to about 5 wt.% of the compositions (paragraphs 0110 - 0111). Proteins may be used and comprise form about 0.05 wt.% to about 1 wt.% (paragraph 0113). In regard to the compositions being hair protecting composition, the compositions comprise the compounds and amounts of the instant claims and therefore would be suitable as a hair protecting composition. Johnson differs from the instant claims insofar as it does not disclose monosodium phosphate. Dussaud et al. disclose compositions for strengthening hair fiber. The compositions may be used before thermal hair shaping (paragraph 0046). The compositions include leave-in treatments (paragraph 0143). Preferred bases for adjusting the pH of the compositions are in particular sodium carbonate, sodium bicarbonate, sodium phosphate, sodium borate, and mixtures thereof (paragraph 0048). Hair fiber strengthening agents include salts of glycerophosphates and glucoheptonate salts (paragraphs 0037 and 0031). Amounts of the hair strengthening agents used include 6.5% (Table 2). Generally, it is prima facie obvious to select a known material for incorporation into a composition, based on its recognized suitability for its intended use. See MPEP 2144.07. It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have used sodium phosphate in the compositions of Johnson motivated by the desire to use a suitable pH adjusting agent for hair care compositions. Alternatively, it would have been obvious to one of ordinary skill in the art prior to filing the instant application to have added amino acids to the composition of Dussaud et al. because they are suitable for use in leave in hair care compositions. In regards to protecting hair against heat, when the sodium is used in the compositions of Johnson, the combination would yield the property of protecting the hair from heat because the hair strengthening agents help protect when the compositions are applied before styling the hair (paragraph 0046-0047). In regards to the pH modifiers, in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art”, a prima facie case of obviousness exists. MPEP 2144.05 A. The range of Johnson et al., 0.01 to 5 wt%, overlaps the range of the instant claims, 0.05 to 10%. It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have used sodium phosphate in an amount ranging from 0.5 to 5% motivated by the desire to achieve the desired pH of 7.5 or less. In regards to the ratio, when the amount of sodium phosphate ranges from 0.01 to 5% and the hydrolyzed protein is 0.1 to 3%, the ratio of the Johnson et al. in view of Dussaud et al. would overlap that of the instant claims. Therefore the ratio range is obvious. Response to Arguments The Examiner submits sodium phosphate may be used as a buffer in leave-in hair care compositions. Therefore it would have been obvious to have used sodium phosphate in the composition of Johnson et al. In regards to the amount of sodium phosphate, Johnson discloses pH adjusters comprise 0.01 to about 5 wt.% of the compositions. Therefore the amount of sodium phosphate used in Johnson would overlap that of the instant claims, which would lead to an overlap in the ratio of sodium phosphate to amino acids. The motivation to use sodium phosphate is because it is a suitable buffer. In regards to the alleged unexpected results, it would appear that any leave in with sodium phosphate present would lead to the results. Therefore, one would reasonably conclude that adding sodium phosphate as the buffer of Johnson would lead to the results disclosed by the instant claims. (New Rejection) 2) Claims 67, 73-74, 77 and 87 are rejected under 35 U.S.C. 103 as being unpatentable over Nguyen et al. (US 2007/0280896) in view of Johnson (US 2015/0150782). Nguyen et al. disclose a composition for relaxing or straightening hair. The compositions may be formulated into leave-on compositions. The use of at least one weak non-hydroxide base aids in straightening/relaxing hair which is safe for the user’s skin (paragraph 0014). The compositions comprise weak inorganic bases including sodium phosphate. The weak bases comprise 0.1% to 10% by weight of the total composition (paragraphs 0019-0022). Hair was treated with 0.1%, 0.5%, 1%, 2%, 4%, 8% solutions of a base including sodium phosphate. The solution is applied to the hair and then flat ironed (paragraph 0046). The pKa of the bases ranges from about 2 to about 13. Nguyen et al. differ from the instant claims insofar as they do not disclose amino acids or the pH. Johnson discloses hair care compositions including osage orange. Amino acids may be used and include lysine (paragraph 0201). Amino acids comprise from 0.05% to about 1 wt%. The compositions are used to protect the hair form free radical damage (paragraphs 0008 and 0016). Conditioning agents may also be used and include hydrolyzed proteins in an amount ranging from 0.1 wt.% to about 3 wt. % (paragraph 0081). The compositions may also comprise conditioning agents and includes hydrolyzed proteins. The conditioning agents comprise 0.001 wt.% to 20 wt.% of the composition (paragraph 0081). The pH is most preferably between about 4.5 and about 7.5. The pH is adjusted by pH modifiers and comprise 0.01 to about 5 wt.% of the compositions (paragraphs 0110 - 0111). Proteins may be used and comprise form about 0.05 wt.% to about 1 wt.% (paragraph 0113). In regard to the compositions being hair protecting composition, the compositions comprise the compounds and amounts of the instant claims and therefore would be suitable as a hair protecting composition. Generally, it is prima facie obvious to select a known material for incorporation into a composition, based on its recognized suitability for its intended use. See MPEP 2144.07. It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have added amino acids to the composition of Nguyen et al. because they are suitable for use in leave in hair care compositions. It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have made the composition of Nguyen et al. a pH ranging from 4.5-7.5 because it is a suitable range for hair care products and the pKa of sodium phosphate would lead to a composition falling within the pH range. In regard to the compositions being hair protecting composition, the composition of Nguyen et al. is applied before flat ironing the hair and comprise sodium phosphate. The disclosed compositions of the combined references comprise the compounds and amounts of the instant claims and therefore, would be suitable as a hair protecting composition. In regards to the pH modifiers, in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art”, a prima facie case of obviousness exists. MPEP 2144.05 A. The range of Johnson et al., 0.01 to 5 wt%, overlaps the range of the instant claims, 0.05 to 10%. It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have used sodium phosphate in an amount ranging from 0.5 to 5% motivated by the desire to achieve the desired pH of 7.5 or less. In regards to the ratio, when the amount of sodium phosphate ranges from 0.01 to 5% and the amino acid is 0.5 to 1%, the ratio of the Nguyen et al. in view of Johnson et al. would overlap that of the instant claims. Therefore the ratio range is obvious. Conclusion Claims 67, 73-74, 77 and 87 are rejected. Claims 78-85 are withdrawn. No claims allowed. 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
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Prosecution Timeline

Jan 18, 2021
Application Filed
Jul 02, 2022
Non-Final Rejection — §103
Jan 26, 2023
Response Filed
May 06, 2023
Final Rejection — §103
Sep 11, 2023
Interview Requested
Sep 11, 2023
Response after Non-Final Action
Oct 11, 2023
Applicant Interview (Telephonic)
Oct 13, 2023
Response after Non-Final Action
Nov 08, 2023
Request for Continued Examination
Nov 13, 2023
Response after Non-Final Action
Nov 18, 2023
Non-Final Rejection — §103
May 23, 2024
Notice of Allowance
Jul 23, 2024
Request for Continued Examination
Jul 23, 2024
Interview Requested
Jul 30, 2024
Response after Non-Final Action
Dec 14, 2024
Non-Final Rejection — §103
Mar 17, 2025
Response Filed
Jul 05, 2025
Final Rejection — §103
Dec 09, 2025
Request for Continued Examination
Dec 11, 2025
Response after Non-Final Action
Jan 08, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

6-7
Expected OA Rounds
48%
Grant Probability
85%
With Interview (+36.4%)
4y 4m
Median Time to Grant
High
PTA Risk
Based on 750 resolved cases by this examiner. Grant probability derived from career allow rate.

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