Prosecution Insights
Last updated: April 19, 2026
Application No. 18/510,186

FORMULATION DELIVERY SYSTEM HAVING A SOLID CHEMISTRY

Non-Final OA §103§DP
Filed
Nov 15, 2023
Examiner
KO, JASON Y
Art Unit
1711
Tech Center
1700 — Chemical & Materials Engineering
Assignee
W M Barr & Company Inc.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
92%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
806 granted / 1073 resolved
+10.1% vs TC avg
Strong +17% interview lift
Without
With
+16.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
21 currently pending
Career history
1094
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
43.8%
+3.8% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
22.2%
-17.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1073 resolved cases

Office Action

§103 §DP
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 . Election/Restrictions Applicant's election with traverse of Claims 1-19, 23-27, and 29-34 in the reply filed on 12/11/25 is acknowledged. The traversal is on the ground(s) that all claims recite a refill cartridge. This is not found persuasive because the claims are directed towards different inventions. The requirement is still deemed proper and is therefore made FINAL. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-19, 23-27, and 29-34 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-19 and 23-36 of U.S. Patent No. 11,833,552. Although the claims at issue are not identical, they are not patentably distinct from each other because patented claims are directed to a generally more specific spray wand configuration (with at most obvious differences) and the cleaning compositions are substantially the same. 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) 1-5, 7-11, 13-17, 19, and 23-27 are rejected under 35 U.S.C. 103 as being unpatentable over LAWSON et al. (US 7,021,571) in view of SMITH et al. (US 2013/0109609). Re Claims 1, 8, 14, LAWSON et al. teaches a spray wand with a hollow body and having a refill cartridge with solid chemistry (liquid includes solid products, col. 4 line 43, and granulated form; See col. 4 line 65-col. 5 line 2). LAWSON et al. does not appear to explicitly teach the cleaning composition of chlorine in the form of a solid chemistry. However, it is well known in the (spray) cleaning art to use chlorine for cleaning. For example, SMITH et al. teaches a solid layered bleach composition with chorine for cleaning. Thus, it would have been obvious to one having ordinary skill in the art at the time of effective filing to modify the spray cleaning device of LAWSON et al. which uses a cleaning composition and to utilize the known solid bleach of SMITH et al. to spray clean in a predictable and known way without unexpected results. Re Claims 2, 9, 15, SMITH et al. teaches calcium hypochlorite. See Abstract. Re Claims 3, 10, 16, 23, 25 SMITH et al. teaches sodium sulfate (filler, [0034], [0094]). Claim 4 is rejected as unpatentable because at least tablets and cylinders are very well known in the art for a solid chemistry composition for cleaning. Re Claims 5, 11, and 17, it would have been at least obvious to try through routine experimentation to change the compositions, noting that the upper end of the range is about double the value of the lower end of the range. Re Claim 7, 19, 24, 26-27, sodium sulfate and sodium chloride are taught by SMITH et al. See [0092]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JASON Y KO whose telephone number is (571)270-7451. The examiner can normally be reached M-F: 9:00-6:00. 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, Michael Barr can be reached at 571-270-1414. 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. JASON Y. KO Primary Examiner Art Unit 1711 /JASON Y KO/Primary Examiner, Art Unit 1711
Read full office action

Prosecution Timeline

Nov 15, 2023
Application Filed
Feb 16, 2026
Non-Final Rejection — §103, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601095
LAUNDRY TREATING APPLIANCE
2y 5m to grant Granted Apr 14, 2026
Patent 12600322
CLEANER SYSTEM
2y 5m to grant Granted Apr 14, 2026
Patent 12602951
APPLIANCE HAVING A CUSTOMIZABLE USER PROFILE
2y 5m to grant Granted Apr 14, 2026
Patent 12588684
Sealed, Self-Cleaning, Food Dispensing System with Variable Overrun Control
2y 5m to grant Granted Mar 31, 2026
Patent 12584262
DISPENSER ASSEMBLY FOR A LAUNDRY TREATMENT APPLIANCE
2y 5m to grant Granted Mar 24, 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

1-2
Expected OA Rounds
75%
Grant Probability
92%
With Interview (+16.8%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1073 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