Prosecution Insights
Last updated: April 19, 2026
Application No. 17/939,993

FERTILIZER WITH STRESS-RESISTANT AND DISEASE-RESISTANT FUNCTIONS AND METHOD FOR PREPARING SAME

Non-Final OA §103
Filed
Sep 08, 2022
Examiner
SMITH, JENNIFER A
Art Unit
1731
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Qingdao Keguang Biological Technology Co. Ltd.
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
3y 2m
To Grant
88%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allow Rate
530 granted / 863 resolved
-3.6% vs TC avg
Strong +26% interview lift
Without
With
+26.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
53 currently pending
Career history
916
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
47.4%
+7.4% vs TC avg
§102
22.9%
-17.1% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 863 resolved cases

Office Action

§103
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 without traverse of the invention of Group I (claim 1) in the reply filed on 09/08/2025 is acknowledged. Claims 2-13 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Information Disclosure Statement The information disclosure statement (IDS) submitted on 09/15/2022 has been considered by the examiner. 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. Claim 1 is rejected under 35 U.S.C. 103 as being unpatentable over Anhui Shennong Agricultural Tech Development Co Lt (CN 108558510A, cite no. 4 in 09/15/2022 IDS) in view of Wang (CN 101190855-A) and Matsui et al. (Agricultural and Biological Chemistry, 1976). In regard to claim 1, Anhui teaches a fertilizer with stress-resistant and disease-resistant functions [Example 1], wherein the fertilizer is prepared from the following raw materials in parts by weight: 20-40 parts of a nitrogen fertilizer (e.g. 25 parts ammonium nitrate, 20 parts urea), 20-30 parts of a phosphate fertilizer (e.g. 20 parts potassium dihydrogen phosphate), 15-20 parts of a potassium fertilizer (e.g. 15 parts potassium hydroxide), 1.5-3.5 parts of trace elements (e.g. .5 parts copper sulfate, 1 part boric acid, 0.5 parts magnesium sulfate), 5 parts potassium fulvate, 5-20 parts of sodium humate (e.g. 10 parts sodium humate), 2 parts citric acid, 3-6 parts of sodium gluconate (e.g. 5 parts sodium gluconate), 2-4 parts of chitosan oligosaccharide (e.g. 1.5 parts chitosan oligosaccharide) [para. 0024]. While the amounts of potassium fulvate and citric acid in Anhui’s Example 1 lie slightly outside the claimed ranges, the reference teaches these components more generally in amounts ranging from 1-5 parts of potassium fulvate and 2-4 parts of citric acid [0007] which overlap with the claimed ranges or are so close that prima facie one skilled in the art would have expected them to have the same properties. Anhui discloses 30 parts additive/auxiliary agent but does not describe 10-15 parts of garden burnet root, 5- 10 parts of kadsura pepper stem, and 5-10 parts of argy wormwood leaf. Wang is directed to an agricultural synergist: a composite synergist for fertilizers that contains both functional synergistic ingredients and supplemental nutrients to enhance fertility [para. 0004]. The composition includes 0.5-2% Sanguisorba officinalis (e.g. great burnet root) and 1-3% Artemisia argyi (argy wormwood leaf) [0010; 0013]. Matsui is directed to the use of Piper futokadsura (e.g. kadsura pepper stem) [pg. 1044, 1st para.]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to include the Chinese herbal medicines of Wang and Matsui in amounts recited in the claimed ranges as the additive/auxiliary agent of Anhui. One of ordinary skill in the art would have been motivated to do so because green, natural Chinese herbal medicines as antibacterial insecticides are not only cost-effective but also highly effective [Wang, 0010]. Sanguisorba officinalis, when used as a whole plant, has excellent antibacterial properties and is highly effective against aphids, spider mites, beetles, and other pests. It can also control wheat root rust. Artemisia argyi, when used as a whole plant, is a highly specialized insect repellent and antibacterial herb, with excellent inhibitory effects against various cocci and bacilli, and also strengthens plant roots [Wang, 0015]. Furthermore, Piper futokadsura shows distinct antifeeding activities against the larvae of a phytophagous insect, Spodoptera litura [Matsui, pg. 1044, 1st para]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jennifer A Smith whose telephone number is (571)270-3599. The examiner can normally be reached Monday - Friday 9:30am-6pm 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, Amber R Orlando can be reached at (571) 270-3149. 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. /JENNIFER A SMITH/Primary Patent Examiner, Art Unit 1731 September 26, 2025
Read full office action

Prosecution Timeline

Sep 08, 2022
Application Filed
Sep 26, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12590042
LIQUID HUMIC ACID EXTRACT
2y 5m to grant Granted Mar 31, 2026
Patent 12570586
DUAL FERTILIZER COMPOSITION INCLUDING AMMONIUM ACETATE AND USES THEREOF
2y 5m to grant Granted Mar 10, 2026
Patent 12570584
CALCIUM CYANAMIDE FERTILIZER WITH TRIAZONE
2y 5m to grant Granted Mar 10, 2026
Patent 12552725
USE OF A LIQUID COMPOSITION FOR COATING PARTICLES
2y 5m to grant Granted Feb 17, 2026
Patent 12552726
INCORPORATION OF BIOLOGICAL AGENTS IN FERTILIZERS
2y 5m to grant Granted Feb 17, 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
61%
Grant Probability
88%
With Interview (+26.3%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 863 resolved cases by this examiner. Grant probability derived from career allow rate.

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