Prosecution Insights
Last updated: October 22, 2026
Application No. 18/670,489

ICEBERG TABLE AUTO-REFRESH

Non-Final OA §103
Filed
May 21, 2024
Examiner
WAI, ERIC CHARLES
Art Unit
2195
Tech Center
2100 — Computer Architecture & Software
Assignee
Snowflake Inc.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
543 granted / 661 resolved
+27.1% vs TC avg
Strong +27% interview lift
Without
With
+27.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
18 currently pending
Career history
696
Total Applications
across all art units

Statute-Specific Performance

§101
14.5%
-25.5% vs TC avg
§103
51.8%
+11.8% vs TC avg
§102
10.3%
-29.7% vs TC avg
§112
15.4%
-24.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 661 resolved cases

Office Action

§103
DETAILED ACTION Claims 1-30 are presented for examination. 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 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. Claims 1-5 and 11-15 and 21-25 is/are rejected under 35 U.S.C. 103 as being obvious over Caldwell et al. (US Pat No. 10,713,272) in view of Dageville et al. (US PG Pub No. 2021/0073207 A1). Regarding claim 1, Caldwell teaches a system comprising: at least one hardware processor; and at least one memory storing instructions that cause the at least one hardware processor to perform operations (Fig 10) comprising: configuring a first processing pipeline definition, the first processing pipeline definition configuring a second processing pipeline definition, the second processing pipeline definition instantiating a source monitor pipeline based on the first processing pipeline definition, the source monitor pipeline to fetch a manifest file of the database table from an external storage location based on the first plurality of configurations (col 10 lines 29-55, wherein crawl management configures crawlers to extract structural data from data sets stored at different storage locations); instantiating a refresh pipeline based on the second processing pipeline definition, the refresh pipeline to perform a refresh operation of the metadata to generate refreshed metadata based on the second plurality of configurations (col 10 lines 42-44, wherein crawl management reschedules previously crawled data sets for a new crawl); and outputting a notification of the refreshed metadata (col 3 lines 38-46). Caldwell does not explicitly teach the first and second processing pipeline definition comprises a first and second plurality of configurations associated with metadata of a database table. Dageville teaches a configuration and metadata manager for collecting and storing metadata about table data ([0045-46]; [0065]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to include a first and second plurality of configurations associated with metadata of a database table. One would be motivated by the desire to manage how modifications to metadata are performed as taught by Dageville ([0048]). Regarding claim 2, Dageville teaches the operations comprising: configuring the first plurality of configurations as a plurality of processing steps in the first processing pipeline definition; and configuring the second plurality of configurations as a plurality of processing steps in the second processing pipeline definition ([0048]). Regarding claim 3, Caldwell teaches the operations comprising: accessing scheduling information associated with at least one notification fetching job of the plurality of notification fetching jobs (col 10 lines 11-15, wherein an event detector monitors for changes to a data set and sends an event notification to registered subscribers). Regarding claim 4, Caldwell teaches the operations comprising: scheduling execution of at least one of the plurality of processing steps in the source monitor pipeline to perform at least one of the plurality of notification fetching jobs based on the scheduling information (col 10 lines 11-15, wherein an event detector monitors for changes to a data set and sends an event notification to registered subscribers). Regarding claim 5, Caldwell and Dageville teach the operations comprising: reading a plurality of metadata files of the database table to obtain a plurality of snapshots (Dageville [0048]); and forwarding the plurality of snapshots as a notification to a notification handler of the source monitor pipeline (Caldwell col 10 lines 11-15, wherein an event detector monitors for changes to a data set and sends an event notification to registered subscribers). Regarding claims 11-15 and 21-25, they are the method and medium claims of claims 1-5 above. Therefore, they are rejected for the same reasons as claims 1-5 above. Allowable Subject Matter Claims 6-10 and 16-20 and 26-30 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERIC C WAI whose telephone number is (571)270-1012. The examiner can normally be reached Monday - Friday 9-5. 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, Aimee Li can be reached at (571) 272-4169. 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. /Eric C Wai/Primary Examiner, Art Unit 2195
Read full office action

Prosecution Timeline

May 21, 2024
Application Filed
Sep 16, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

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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
82%
Grant Probability
99%
With Interview (+27.1%)
3y 8m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 661 resolved cases by this examiner. Grant probability derived from career allowance rate.

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