Prosecution Insights
Last updated: April 19, 2026
Application No. 17/299,030

ZIRCONIUM-BASED AND LANTHANUM-BASED ETHYLENICALLY UNSATURATED METAL SALTS

Final Rejection §103
Filed
Jun 02, 2021
Examiner
GULAKOWSKI, RANDY P
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Arkema France
OA Round
3 (Final)
17%
Grant Probability
At Risk
4-5
OA Rounds
3y 0m
To Grant
35%
With Interview

Examiner Intelligence

Grants only 17% of cases
17%
Career Allow Rate
9 granted / 53 resolved
-48.0% vs TC avg
Strong +18% interview lift
Without
With
+17.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
10 currently pending
Career history
63
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
48.3%
+8.3% vs TC avg
§102
18.4%
-21.6% vs TC avg
§112
22.2%
-17.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 53 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 . The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 1-10 and 27 are rejected under 35 U.S.C. 103 as being unpatentable over Ceska et al-6,399,672. The rejection from the previous office actions is repeat and applied here as such. Applicant's arguments filed 1/28/2026 have been fully considered but they are not persuasive. Applicants’ have amended the claims to cancel the first Zr species of metal salt, therefore leaving the Zr oxide and La species. They argue that to arrive at applicant’s specific species a number of selection would have to made. The rejection is maintained since along with the disclosure of Zr, the Zr oxide is also an option disclosed by Ceska, see column 5 lines 18-30. Although the Ceska reference requires several selections from disclosed variables, he does in fact disclose the all of the components/variables of applicants claimed ethylenically unsaturated metal salt (as admitted by applicants’). One skilled in art would have found it prima facie obvious to select the claimed variables from the broader disclosure of Ceska since the courts have held that the fact that the reference discloses numerous types of monomers which can be suitably selected to form a compound does not render any particular combination of two or more of Ceska's disclosed variables less obvious. A reference is available for all that it teaches to a person of ordinary skill in the art. Merck & Co., Inc. V. Biocraft Laboratories, Inc. 874 F.2d 804, 807 (Fed. Cir. 1989). It is further noted that Applicant has not established any unexpected or unpredictable result from using the selected components. The burden is shifted to applicants’ to show unexpected results for the claimed compounds when compared to those of the prior art. Applicants argue that the present invention obtains a “high” refractive index (RI) when compared to example 1 of the Ceska reference. The 4 examples from the present spec show a range of RI of 1.588-1.594, while the example from Ceska shows 1.5126. This appears to be a minor difference, and an expected standard deviation when comparing such compounds. Also, more importantly, the present examples and that of example 1 do not contain same unsaturated elements/variables, which would also be expected to have an effect on the RI obtained. Further, applicants do not disclose any comparative data. Therefore, it appears that there is no real data to compare from the present disclosure nor the reference since many of the variable are different, not simply the Zn and Zr metal ions. Lastly, the Ceska reference discloses the preference/ability of obtaining products with RIs between 1.50-1.60, see column 7, lines 8-14. Applicants’ also argue that, as disclosed in their spec., the process used in Ceska is insufficient to obtain the corresponding soluble metal salt. This statement seems unfounded since 1) no comparative data is presented to prove the assertion and 2) the Ceska reference discloses that their compounds are also soluble in the same materials as applicants. Applicants withdrawn claim 16 states that the reactive diluents that solubilize the metal salt are mono- polyfunctional acrylics, vinyl or allyl monomers. Ceska discloses in column 8 lines 44-48: PNG media_image1.png 96 412 media_image1.png Greyscale 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 nonprovisional extension fee (37 CFR 1.17(a)) 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 mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RANDY P GULAKOWSKI whose telephone number is (571)272-1302. The examiner can normally be reached M-F 7:30-4pm. 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, Randy P Gulakowski can be reached at 571-272-1302. 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. /RANDY P GULAKOWSKI/Supervisory Patent Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Jun 02, 2021
Application Filed
Aug 08, 2024
Non-Final Rejection — §103
Feb 17, 2025
Response after Non-Final Action
Feb 18, 2025
Response Filed
Aug 25, 2025
Non-Final Rejection — §103
Jan 28, 2026
Response Filed
Feb 27, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Jan 27, 2026
Patent 12516155
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Patent 12516165
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2y 5m to grant Granted Jan 06, 2026
Patent 12473398
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2y 5m to grant Granted Nov 18, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
17%
Grant Probability
35%
With Interview (+17.6%)
3y 0m
Median Time to Grant
High
PTA Risk
Based on 53 resolved cases by this examiner. Grant probability derived from career allow rate.

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