Prosecution Insights
Last updated: August 18, 2026
Application No. 18/660,726

ALKOXYLATED (HYDROXYALKYL)AMINOPHENOL POLYMERS AND METHODS OF USE

Final Rejection §DP
Filed
May 10, 2024
Priority
Oct 21, 2020 — provisional 63/094,597 +1 more
Examiner
FANG, SHANE
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Ecolab USA Inc.
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
1152 granted / 1509 resolved
+11.3% vs TC avg
Strong +19% interview lift
Without
With
+18.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
69 currently pending
Career history
1569
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
54.6%
+14.6% vs TC avg
§102
19.8%
-20.2% vs TC avg
§112
12.8%
-27.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1509 resolved cases

Office Action

§DP
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 Response to Amendment The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. The amendment is supported. The previous ODP rejections has been maintained, but the position has been modified due to the amendment. The examiner urges filing a terminal disclaimer to overcome the ODP rejection. Claim Rejections - Double Patenting Claim(s) 1-2, 4-5, and 12-15 is (are) rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 16-21 of US 11767393. ‘393 (claims 16-21) meets instant claims 1-2, 4-5, and 12-15, because it discloses the claimed industrial process of treating crude oil (stream) by adding a solvent based composition comprising 0.1-10k ppm of the claimed polymer of claim 1: PNG media_image1.png 574 288 media_image1.png Greyscale PNG media_image2.png 303 628 media_image2.png Greyscale The process stream comprises wax, and the polymer composition further comprise solvent such as ethylene glycol and an additive such as corrosion inhibitor. The disclosed process meet the claimed new limitation of resolving an emulsion, because according the instant specification [0013], resolving an emulsion merely refers to adding a polyalkoxylated polymer to a process stream including an emulsion, to form a treated process stream: PNG media_image3.png 153 924 media_image3.png Greyscale Allowable Subject Matter The following is an examiner's statement of reasons for allowance: Claim(s) 1-17 is(are) allowable over the closest prior art: Holtrup et al. (US 20020156136) listed on IDS in proviso the above ODP issue is resolved. Claim(s) 3, 6-11, and 16-17 is(are) objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. As to claim 1, Holtrup (abs., claims, examples) discloses: PNG media_image4.png 478 294 media_image4.png Greyscale PNG media_image5.png 279 295 media_image5.png Greyscale and an example of producing amino phenol aldehyde resin: PNG media_image6.png 477 416 media_image6.png Greyscale However, Holtrup fails to disclose the polymer having hydroxylalkoxy pendant group on the amino group of claim 1. Therefore, claim 1 is(are) provisionally allowable together with its dependent claims 2-17. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance”. Response to Arguments The argument for allowance of amended claims has been fully considered but not persuasive. Therefore, the previous ODP rejections has been maintained, but the position has been modified due to the amendment. Applicant’s amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 extension fee 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 date of this final action. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHANE FANG whose telephone number is (571)270-7378. The examiner can normally be reached on Mon-Thurs. 8am-6pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Randy Gulakowski can be reached on 571.572.1302. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SHANE FANG/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

May 10, 2024
Application Filed
Mar 16, 2026
Non-Final Rejection mailed — §DP
Jun 15, 2026
Response Filed
Jun 25, 2026
Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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3y 3m to grant Granted Jun 30, 2026
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
76%
Grant Probability
95%
With Interview (+18.8%)
2y 5m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1509 resolved cases by this examiner. Grant probability derived from career allowance rate.

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