Prosecution Insights
Last updated: April 19, 2026
Application No. 18/540,128

SUPERABSORBENT POLYMER COMPOSITION AND METHOD OF MANUFACTURING SUPERABSORBENT POLYMER

Non-Final OA §103
Filed
Dec 14, 2023
Examiner
IMANI, ELIZABETH MARY COLE
Art Unit
1789
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Formosa Plastics Corporation
OA Round
1 (Non-Final)
33%
Grant Probability
At Risk
1-2
OA Rounds
4y 7m
To Grant
58%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allow Rate
311 granted / 930 resolved
-31.6% vs TC avg
Strong +25% interview lift
Without
With
+25.1%
Interview Lift
resolved cases with interview
Typical timeline
4y 7m
Avg Prosecution
77 currently pending
Career history
1007
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
73.5%
+33.5% vs TC avg
§102
4.9%
-35.1% vs TC avg
§112
5.5%
-34.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 930 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 . Applicant’s election without traverse of Group I, claims 1-6 in the reply filed on 12/23/25 is acknowledged. 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. Claim(s) 1-4 is/are rejected under 35 U.S.C. 103 as being unpatentable over TW202039683A, (machine translation attached) in view of Pourjavadi et al, “Synthesis and super-swelling behavior of a novel protein-based superabsorbent hydrogel. TW’683 discloses a water absorbent resin composition comprising an acid group-containing monomer aqueous solution, wherein a neutralization rate of the acid group-containing monomer is not less than 45 mol percent, the pH value of the solution is less than or equal to 7, and further comprising a crosslinking agent and a thermal decomposition polymerization initiator and/or a redox polymerization initiator. See first full paragraph page 1. Suitable monomers include carboxylic acid monomers. See page 2, 13th full paragraph. The composition can further comprise a surface treatment agent. See page 4, 5th full paragraph. TW ‘683 differs from the claimed invention because it does not disclose adding hydrolyzed collagen to the composition. However, Pourjavadi teaches incorporating collagen into superabsorbent hydrogels formed from carboxylic acids improved the absorbency of the hydrogel. See conclusion, page 823. Therefore, it would have been obvious to have incorporated collagen into the superabsorbent composition of TW ‘683 and to have selected the most effective amount and molecular weight of the hydrolyzed collagen through the process of routine experimentation in order to optimize the absorbency of the superabsorbent. Claim(s) 5-6 is/are rejected under 35 U.S.C. 103 as being unpatentable over TW202039683A, (machine translation attached) in view of Pourjavadi et al, “Synthesis and super-swelling behavior of a novel protein-based superabsorbent hydrogel as applied to claims above, and further in view of Wu et al, U.S. Patent Application Publication No. 2007/0231878. TW ‘683 in view of Pourjavadi differs from the claimed invention because it does not disclose that the source of the collagen is fish scales. However, Wu discloses a method for making collagen from fish scales by subjecting the fish scales to protein hydrolase, (protease). See abstract, paragraphs 0028-0036 and example 4. Therefore, it would have been obvious to have employed collagen made from fish scales as taught by Wu in view of its ready availability and high purity. With regard to the particular protease used, it is noted that the particular process of extracting the collagen is a process limitation and therefore the burden is shifted to Applicant to show that any process difference results in an unobvious difference between the claimed product and the prior art product. Additionally, since Wu teaches extracting the collagen from the fish scales by hydrolyzing with a protease, it would have been obvious to have selected from among known protease to extract the collagen from the fish scales. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Ahmed et al, U.S. Patent Application Publication No. 2009/0023848. Ahmed discloses a superabsorbent polymer composition comprising a super absorbent polymer comprising 55-99.9% by weight of polymerizable unsaturated acid group monomer, 0.001 to about % % by weight of a crosslinking agent, 50-1000 ppm of a thermal initiator, wherein the superabsorbent polymer has a degree of neutralization of 25% or greater. See paragraph 0005. Suitable monomers include carboxylic acid monomers. See paragraph 0037. Suitable polymerization initiators include thermal imitators including persulfates, as well as peroxo compound. See paragraph 0042-0043. The composition can include a surface crosslinking agent which is equated with the claimed surface treatment agent. See paragraph 0047, Further, the composition can include a polymeric coating which is also equated with a surface treating agent. See paragraph 0054-paragraph 0056. Ahmed does not disclose the claimed neutralization percentage or the presence of the hydrolyzed collagen. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELIZABETH M IMANI whose telephone number is (571)272-1475. The examiner can normally be reached Monday-Wednesday 7AM-7:30; Thursday 10AM -2 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, Marla McConnell can be reached at 571-270-7692. 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. /ELIZABETH M IMANI/Primary Examiner, Art Unit 1789
Read full office action

Prosecution Timeline

Dec 14, 2023
Application Filed
Jan 24, 2026
Non-Final Rejection — §103 (current)

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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
33%
Grant Probability
58%
With Interview (+25.1%)
4y 7m
Median Time to Grant
Low
PTA Risk
Based on 930 resolved cases by this examiner. Grant probability derived from career allow rate.

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