Prosecution Insights
Last updated: April 19, 2026
Application No. 18/566,044

ADDITIVE FOR AUTOMATIC DISHWASHING CYCLE, COMPOSITION, USE AND METHOD OF PREVENTING CORROSIN OF ALUMINIUM

Non-Final OA §103
Filed
Nov 30, 2023
Examiner
HINES, LATOSHA D
Art Unit
1771
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Reckitt Benckiser Finish B V
OA Round
1 (Non-Final)
51%
Grant Probability
Moderate
1-2
OA Rounds
3y 6m
To Grant
73%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allow Rate
478 granted / 944 resolved
-14.4% vs TC avg
Strong +22% interview lift
Without
With
+22.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
73 currently pending
Career history
1017
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
62.0%
+22.0% vs TC avg
§102
12.9%
-27.1% vs TC avg
§112
15.2%
-24.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 944 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 This Office action is based on the 18/566044 application originally filed November 30, 2023. Amended claims 1-19, filed January 18, 2024, are pending and have been fully considered. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 1-6 and 9-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Berger et al. (US 2006/0199750) hereinafter “Berger”. Regarding Claims 1-6, 10-16 and 18-19 Berger discloses in the abstract, a method of preventing corrosion of metals (including aluminum) such as stainless steel, carbon steel and chrome plated flatware in automatic dishwashers through the use of a corrosion inhibitor in an automatic dishwashing detergent composition. Berger discloses in paragraph 0008, a method of preventing corrosion of stainless steel, carbon steel and chrome plated flatware via the use of an automatic dishwashing composition comprising an effective amount of a corrosion inhibitor. The automatic dishwashing composition may be in any acceptable form. The automatic dishwashing composition may be in the form of a through-the-wash formulation, a through-the-rinse formulation or may be released during the drying stage. The automatic dishwashing composition also includes a composition that is used as an additive in addition to one or more other automatic dishwashing compositions. Berger discloses in paragraph 0009, cooking utensils and tableware which are cleaned in automatic dishwashing machines pass through various washing cycles or, as is encountered in a commercial type automatic dishwashing machine, stages of the machine. The cycles or stages usually include a pre-rinse of warm water, followed by one or more spray washings of an aqueous solution of a detergent composition. A final step in each of the types of machines includes a water rinse to wash away residual detergent composition and loosened soil. Optionally, a separate dispenser is provided in the final rinse cycle or stage to deliver a rinse aid composition to the rinse water. This rinse aid composition contains a nonionic detergent to promote wetting and to produce a sheet flow, thereby reducing water spotting. Additionally the rinse aid composition increases the run-off speed of the water and reduces the drying time during the drying phase. Berger further discloses in paragraph 0016, the corrosion inhibitor should be formulable and safe for use on eating and cooking surfaces such as tableware, cookware, flatware, glasses, and similar cooking or eating surfaces. Suitable materials for the corrosion inhibitor for use in the compositions herein include: a mixture of benzoic acid, ethanolamines and di-fatty acids (e.g. sebacic acid) sold under the commercial name of Cortec® S-69 available from the Cortec Corporation; a mixture of cyclohexylamine, benzoic acid, ethanolamines and di-fatty acids (e.g. sebacic acid) available from Cortec Corporation and any combinations of the above mentioned corrosion inhibitors. Berger discloses in paragraph 0017, the corrosion inhibitor is present in the automatic dishwashing composition from about 0.1% to about 50% by weight of the automatic dishwashing composition. If a “through-the-wash” composition then the corrosion inhibitor is present from about 0.25% to about 3% by weight of the automatic dishwashing composition. If a “through-the-rinse” composition then the corrosion inhibitor is present from about 0.5% to about 50% by weight of the automatic dishwashing composition. Berger discloses in paragraph 0055, the following examples of automatic dishwashing compositions are provided for purposes of showing certain embodiments, and as such are not intended to be limiting in any manner. PNG media_image1.png 602 581 media_image1.png Greyscale Berger shows in Table 1, the addition to the dishwashing detergent composition comprises sodium silicate and sodium benzoate (salt of benzoic acid (ring-containing organic acid compound)). It is to be noted, the amount of sodium silicate and sodium benzoate in Table 1 of Berger falls within the claimed amount of 20mg to 5000mg sodium silicate and 50mg to 10,000mg ring-containing organic acid compound (sodium benzoate) due to Berger further disclosing in paragraph 0030, any suitable builder system comprising any suitable builder in any suitable amount or form may be used. In one embodiment a builder system may be present from about 5% to about 50% by weight of the automatic dishwashing composition. Any conventional builder is suitable for use herein. For example, suitable builders include, but are not limited to: citrate, phosphate (such as sodium tripolyphosphate (STPP), potassium tripolyphosphate (KTPP), mixed sodium and potassium tripolyphosphate (SKTP), sodium or potassium or mixed sodium and potassium pyrophosphate), aluminosilicate materials, silicates, polycarboxylates and fatty acids, materials such as ethylene-diamine tetraacetate, metal ion sequestrants such as aminopolyphosphonates, ethylenediamine tetramethylene phosphonic acid and diethylene triamine pentamethylene-phosphonic acid. Therefore, it would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to use the optimum range of sodium silicate and sodium benzoate as effective builders in the dishwashing composition. The applicant is reminded that where the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation. In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235. In the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie 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). Regarding Claims 9 and 17 Berger further discloses in paragraph 0051, any suitable product form may be used. Suitable product forms include, but not limited to: solids, granules, powders, liquids, gels, pastes, semi-solids, tablets, water-soluble pouches, and combinations thereof. In a preferred embodiment of the present invention the composition forms part of a multi-phase unit dose product, preferably a dual compartment water-soluble pouch, wherein one of the phases comprises a main wash detergent composition. Claim(s) 7 and 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Berger et al. (US 2006/0199750) hereinafter “Berger” in view of Jain (WO 2019/058398 A1). Regarding Claims 7 and 8 Berger discloses the claimed additive composition for a dishwashing composition as presently claimed but fails to further disclose the addition of an antioxidant. However, it is known in the art to add antioxidants to a dishwashing composition in order to aid in producing a liquid with disinfecting properties, as taught by Jain. Jain discloses in paragraph 0088, a hand sanitizer composition, wherein the composition is in form of a dish-wash liquid. Jain further discloses in paragraph 0038, there is provided a composition comprising: (a) ajwain oil; (b) at least one surfactant; (c) at least one base; (d) at least one mineralizing agent; (e) at least one antioxidant; (f) at least one pH adjusting agent; (g) at least one fragrance; (h) at least one skin conditioner; and (i) at least one colorant, wherein the at least one anti-oxidant is selected from the group consisting of butylated hydroxy anisole, butylated hydroxy toluene, ascorbic acid, ascorbyl palmitate, beta carotene, tocopherol, tocopheryl acetate, isoflavones, polyphenols, propyl gallate, dodecyl gallate, kojic acid, manganese dioxide, acetyl cysteine, tetrahydrodiferuloylmethane, quercetin, tertiary butylhydroquinone, ascorbyl palmitate, potassium metabisulfite, sodium metabisulfite, and combinations thereof, and the at least one anti-oxidant has a weight by volume percentage in the range of 0.01 - 5% with respect to the composition. It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to add the antioxidants of Jain to the dishwashing composition of Berger in order to aid in producing a dish-wash liquid with disinfecting properties. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LATOSHA D HINES whose telephone number is (571)270-5551. The examiner can normally be reached Monday thru Friday 9:00 AM - 6:00 PM. 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, Prem Singh can be reached at 571-272-6381. 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. /Latosha Hines/ Primary Examiner, Art Unit 1771
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Prosecution Timeline

Nov 30, 2023
Application Filed
Dec 01, 2025
Non-Final Rejection — §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
51%
Grant Probability
73%
With Interview (+22.5%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 944 resolved cases by this examiner. Grant probability derived from career allow rate.

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