Prosecution Insights
Last updated: August 17, 2026
Application No. 18/563,507

POLYAMINES AS ALDEHYDE SCAVENGERS

Non-Final OA §102§103§112
Filed
Nov 22, 2023
Priority
Jun 14, 2021 — EU 21179329.4 +2 more
Examiner
RIOJA, MELISSA A
Art Unit
Tech Center
Assignee
BASF SE
OA Round
1 (Non-Final)
50%
Grant Probability
Moderate
1-2
OA Rounds
5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 50% of resolved cases
50%
Career Allowance Rate
429 granted / 866 resolved
-10.5% vs TC avg
Strong +54% interview lift
Without
With
+53.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
59 currently pending
Career history
926
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
42.5%
+2.5% vs TC avg
§102
13.2%
-26.8% vs TC avg
§112
32.5%
-7.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 866 resolved cases

Office Action

§102 §103 §112
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 . Claim Objections Claims 3 and 14 are objected to because of the following informalities: it is suggested Claim 3 be amended to recite “5,000 g/mol, as determined by gel permeation chromatography (GPC)”; for clarity, it is suggested “and blowing agents comprising water” in Claim 14 be relocated to appear earlier in the claim, e.g. at the end of the list of the ingredients in the composition and before the definition of the moieties of the general formula for the polymeric amines (d). Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1 – 13 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention because There is a lack of antecedent basis for “the” polyurethane set forth in line 11 of Claim 1, as well as in Claims 9 – 11. It is unclear to which of the polyurethanes recited in the preamble this phrase refers. For the purposes of examination, “the” polyurethane set forth in each instance in the aforementioned claims will be interpreted as referring to the polyurethanes. As Claims 2 – 8, 12, and 13 all ultimately depend on Claim 1, they incorporate the subject matter thereof and are consequently also rejected under this statute. There is additionally a lack of antecedent basis for W set forth in Claim 2. It is unclear which W(s) in the general formula are being referred to in the claim. For the purposes of examination, Claim 2 will be interpreted as setting forth W in each instance represents propylene or butylene. There is also a lack of antecedent basis for “the” isocyanate-reactive group(s) recited in Claim 7. The claims do not expressly set forth the incorporable catalyst comprise isocyanate-reactive group(s) prior to this recitation. For the purposes of examination, Claim 2 will be interpreted as setting forth the incorporable catalysts employed are compounds which comprise one or more isocyanate-reactive groups and one or more tertiary, aliphatic amino groups. There is further a lack of antecedent basis for “the” incorporable catalyst set forth in Claim 8. It is unclear to which of the initially recited incorporable catalysts (plural) this phrase in Claim 8 refers. For the purposes of examination, Claim 8 will be interpreted as setting forth the incorporable catalysts. Claim 13 is additionally indefinite. Claim 13 sets forth a method of using the polyurethane according to claim 12, the method comprising using the polyurethane in enclosed spaces. The claim does not then set forth any particular steps as to how this use is practiced. For the purposes of further examination, Claim 13 will be interpreted as “A method comprising providing the polyurethane in an enclosed space.” Claim Rejections - 35 USC § 102 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 the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim 14 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 2016/0369035 to Burdeniuc et al. (hereinafter Burdeniuc). Regarding Claim 14. Burdeniuc teaches a composition comprising at least one polyol, wherein polyols are polymeric compounds having isocyanate-reactive groups; at least one amine catalyst; and at least two aldehyde scavengers [0092]. One of the aldehyde scavengers corresponds to PNG media_image1.png 56 414 media_image1.png Greyscale and another one may correspond to: PNG media_image2.png 33 387 media_image2.png Greyscale [0118]. These compounds then correspond to polymeric amineS of the instantly claimed general formula in which W is a linear chain hydrocarbon having 3 carbon atoms, each R is hydrogen, H represents a hydrogen atom and N represents a nitrogen atom, l is 1 or 2, and m and n are zero and therefore Q and S are absent. As these compounds each correspond to single, uniform molecules, they will also have only one molecular weight and therefore a polydispersity of 1. Allowable Subject Matter Claims 1 – 13 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: the prior art does not teach or suggest a process for producing polyurethanes comprising mixing all of the instantly claimed ingredients, including polymeric amines having the general formula H-2N-W-NR-[W-NR]l-[Q-NR]m-[S-NR]n-W-NH2 and a polydispersity of at least 1.2. US 2020/00231806 to Nishikita et al., US 2021/0122869 to Michaud et al., and US 2016/0369035 to Burdeniuc et al. (hereinafter Burdeniuc) correspond to the closest prior art. Each of these references teaches a process for producing polyurethanes comprising mixing a polyisocyanate, polymeric compounds having isocyanate-reactive groups, and polymeric amines. However, while Nishikita and Michaud do teach the concept of providing polyethyleneimines as the polymeric amines, they do not expressly describe the structure thereof and are silent regarding to their polydispersity. The polymeric amines of Nishikita and Michaud do not then necessarily correspond to the polymeric amines of the instantly claimed general formula and which have a polydispersity of at least 1.2. Additionally, as detailed in the rejection of Claim 14 under 35 U.S.C. 103 above, Burdeniuc teaches various polymeric amine compounds which do correspond to polymeric amines of the instantly claimed general formula but have an expected polydispersity of 1, which is outside the instantly claimed range. Further, no other prior art reference provides the necessary teaching or guidance which would lead a person of ordinary skill in the art to modify Nishikita, Michaud, and/or Burdeniuc in the manner necessary to arrive at the instantly claimed invention. Notice of References Cited (PTO-892) The art made of record and not relied upon is considered pertinent to applicant's disclosure. US 2016/0304685 and US 2019/0040254 teach the use of polyamines as aldehyde scavengers in polyurethane foams. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to MELISSA RIOJA whose telephone number is (571)270-3305. The examiner can normally be reached Monday - Friday 10:00 am - 6:30 pm EST. 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, Arrie Lanee Reuther can be reached at (571)270-7026. 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. /MELISSA A RIOJA/Primary Examiner, Art Unit 1764
Read full office action

Prosecution Timeline

Nov 22, 2023
Application Filed
Jul 13, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12703791
PROPYLENE COMPOSITION FOR FOAMING WITH IMPROVED MECHANICAL PROPERTIES
4y 2m to grant Granted Aug 11, 2026
Patent 12679943
Additive for Reducing Polyurethane Foam Degradation
3y 5m to grant Granted Jul 14, 2026
Patent 12662566
POLYURETHANE FOAM AND METHODS OF FORMING THE SAME
3y 5m to grant Granted Jun 23, 2026
Patent 12654280
CMP PAD HAVING POLISHING LAYER OF LOW SPECIFIC GRAVITY
4y 0m to grant Granted Jun 16, 2026
Patent 12649809
FOAMS AND METHODS OF FORMING FOAMS OF CHAIN EXTENDED/BRANCHED COPOLYMERS OF VINYLIDENE SUBSTITUTED AROMATIC MONOMERS
5y 0m to grant Granted Jun 09, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
50%
Grant Probability
99%
With Interview (+53.9%)
3y 2m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 866 resolved cases by this examiner. Grant probability derived from career allowance rate.

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