Prosecution Insights
Last updated: August 15, 2026
Application No. 18/259,785

HYDROGENATION CATALYST WITH IMPROVED SULFUR RESISTANCE AND METHOD FOR PRODUCING SAME

Final Rejection §103
Filed
Jun 29, 2023
Priority
Dec 30, 2020 — RE 10-2020-0188269 +1 more
Examiner
NGUYEN, CAM N
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Hanwha Corporation
OA Round
2 (Final)
85%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1085 granted / 1280 resolved
+19.8% vs TC avg
Moderate +12% lift
Without
With
+12.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
39 currently pending
Career history
1323
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
31.8%
-8.2% vs TC avg
§102
30.4%
-9.6% vs TC avg
§112
27.5%
-12.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1280 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 Response to Amendment 1. The amendment filed on 05/21/2026 has been made of record and entered. Claim 1 has been amended. Claims 1-17 are currently pending in this application. Status of Withdrawn Claim(s) 2. Claims 8-17 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention(s), there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 01/23/2026. Claim Rejections - 35 USC § 103 3. 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. Claim(s) 1 & 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over CN 102114426 A, hereinafter “CN ‘426”. CN ‘426 discloses a hydrogenation catalyst, the catalyst comprises: 20-60 parts by mass of nickel, 5-60 parts by mass of copper, 45-110 parts by mass of aluminum oxide and/or 45-110 parts by mass of silicon dioxide (silica), 2-10 parts by mass of cerium oxide and 2-10 parts of lanthanum oxide (see Abstract). Regarding claim 1, the reference teaches a hydrogenation catalyst, comprises Ni, Cu, Ce, and silica as claimed. With respect to the Ni amount in claim 1, the reference teaches Ni at an amount of 20-60 parts by mass (Abstract). The amount of Ni is calculated to be 9.5 wt.% - 52.6 wt.% (20/(60+110+10+20)*100% = 9.5% and 60/(5+45+2+2+60)*100% = 52.6%), which overlaps with the instant claimed range (40 to 80 parts by weight). With respect to the Cu amount in claim 1, the reference teaches Cu at an amount of 5-60 parts by mass (Abstract). The amount of Cu is calculated to be 2.56 wt.% - 46.5 wt.% (5/(60+110+10+10+5)*100% = 2.56 wt.% and (60/(20+45+2+2+60)*100% = 46.5 wt.%), which overlaps with the instant claimed range (0.01 to 5 parts by weight). With respect to the Ce amount in claim 1, Ce is taught to be in an amount of 2-10 parts by mass (Abstract). The amount of Ce is calculated to be 0.83 wt.% - 12.2 wt.% (2/(60+60+110+10+2)*100% = 0.83 wt.% and 10/(20+5+45+2+10)*100% = 12.2 wt.%), which overlaps with the instant claimed range (0.05 to 5 parts by weight). Regarding the SiO2 amount in claim 1, the amount of silica taught by the reference is 45-110 parts (Abstract). The amount of SiO2 is calculated to be 15.3 wt.% - 79 wt.% (45/(60+60+110+10+10+45)*100% = 15.3 wt.% and 110/(20+5+2+2+110)+100% = 79 wt.%), which overlaps with the instant claimed range (10 to 30 parts by weight). Regarding claim 2, the instant claim limitation is met by the reference because nickel, copper, and cerium disclosed and claimed are the same. Claims 1 & 2 are unpatentable as being obvious over CN ‘426. Response to Applicants’ Arguments 4. Applicants’ remarks submitted with the amendment on 05/21/2026 have been fully reviewed, the arguments are not deemed persuasive because of the following reasons. Applicants argued, the applied reference, CN ‘426, is a non-analogous art because it relates entirely to inorganic silicon chemistry (Applicants’ response, page 7). Applicants further argued that the CN ‘426 is explicitly designed as a “special catalyst for low-temperature hydrogenation of silicon tetrachloride (SiCl4) to produce trichlorosilane (SiHCl3) for polysilicon manufacturing (Applicants’ response, page 7). Applicants’ urging on the use of the instant hydrogenation catalyst, which is “for hydrogenation of a petroleum resin”, has been noted. However, the use of the instant hydrogenation catalyst does not make the instant hydrogenation catalyst different in structure and composition in fact since applicants have not yet shown that the instant hydrogenation catalyst is different from the hydrogenation catalyst of the reference as applied. See In re Thuau, CCPA 1943, 57 USPQ 324. Even though CN ‘426 is not related to the same field of art, the hydrogen catalyst disclosed appears to have the same structure and composition as that recited in the instant claims and it can also be used for hydrogenation of a petroleum resin as well. Allowable Subject Matter 5. Claims 3-7 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. CN 102114426 A is found to be the closest prior art, which teaches the claimed hydrogenation catalyst as recited in the instant claim 1, however this reference does not teach the claimed features or characteristics of the catalyst as further defined in these claims. There is no motivation to combine the teachings of the prior art references together to arrive to the claimed invention. 6. THIS ACTION IS MADE FINAL. 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. Conclusion 7. Claims 1-17 are pending. Claims 1 & 2 are rejected. Claims 3-7 are objected. Claims 8-17 are withdrawn. No claims are allowed. Contacts 8. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Primary Examiner CAM N. NGUYEN whose telephone number is (571)272-1357. The examiner can normally be reached on M-F (8:30 am – 5:00 pm) at alternative worksite or at cam.nguyen@uspto.gov. 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, Anthony Zimmer, can be reached at 571-270-3591. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Cam N. Nguyen/Primary Examiner, Art Unit 1736 /CNN/ August 05, 2026
Read full office action

Prosecution Timeline

Jun 29, 2023
Application Filed
Feb 26, 2026
Non-Final Rejection mailed — §103
May 21, 2026
Response Filed
Aug 07, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12704507
MULTIFUNCTIONAL MAGNETIC-OPTICAL NANOPARTICLES
3y 11m to grant Granted Aug 11, 2026
Patent 12702968
THREE-WAY CONVERSION CATALYST COMPOSITION COMPRISING PLATINUM-RHODIUM BIMETALLIC COMPONENTS
3y 5m to grant Granted Aug 11, 2026
Patent 12702969
PARTICLES WITH PREFERRED ATTRITION PROPERTIES
1y 4m to grant Granted Aug 11, 2026
Patent 12697603
PRODUCTION OF POROUS ALPHA-ALUMINA SUPPORTS FROM BOEHMITIC DERIVED ALUMINAS
3y 7m to grant Granted Aug 04, 2026
Patent 12692165
ACTIVATED CARBON AND METHOD FOR MANUFACTURING THE SAME
3y 8m to grant Granted Jul 28, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
85%
Grant Probability
97%
With Interview (+12.3%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1280 resolved cases by this examiner. Grant probability derived from career allowance 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