Prosecution Insights
Last updated: October 26, 2026

Diana Patricia Sanford, USPTO Patent Examiner

Listed by the USPTO as SANFORD, DIANA PATRICIA

Tech Center 1600 • Art Units: 1687

This examiner grants 47% of resolved cases

Analysis

SANFORD, DIANA PATRICIA is a USPTO patent examiner in Tech Center 1600 and Art Unit 1687. The profile contains 17 resolved cases, a 47.1% allowance rate, and a 36.5% interview lift. Median time to allowance is 1661 days. Because the resolved-case figure is limited, these results should be treated as an early record rather than a stable long-term measure.

Listed companies include Fujifilm Corporation, Robert Bosch GmbH, and National Institute of Advanced Industrial Science and Technology. Listed firms include BIRCH STEWART KOLASCH & BIRCH, LLP, SUGHRUE MION, PLLC, and Anderson Patent Law Firm LLC. Counsel can use the profile as a starting point for Art Unit research while giving appropriate weight to the limited case history.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

47.1%
Allow Rate
-12.9% vs TC avg
58
Total Applications
+36.5%
Interview Lift
1661
Avg Prosecution Days
Based on 17 resolved cases, 2023–2026

Rejection Statute Breakdown

31.9%
§101 Eligibility
9.7%
§102 Novelty
28.5%
§103 Obviousness
26.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18321106 METHOD, MANUFACTURING METHOD, DESIGN DEVICE, DESIGN PROGRAM, AND RECORDING MEDIUM FOR PRIMER FOR AMPLICON METHYLATION SEQUENCE ANALYSIS Non-Final OA FUJIFILM Corporation
17945689 CALCULATION METHOD FOR BASE METHYLATION DEGREE AND PROGRAM Final Rejection FUJIFILM Corporation
17884852 CELL CULTURE PROCESS SEARCH METHOD, CELL CULTURE PROCESS SEARCH PROGRAM, CELL CULTURE PROCESS SEARCH DEVICE, AND LEARNED MODEL Final Rejection FUJIFILM Corporation
17723939 COMPUTATIONAL METHOD FOR CHARACTERIZING A BIOPOLYMER PROPERTY OF A BIOPOLYMER Final Rejection Robert Bosch GmbH
17795091 METHOD FOR OPTIMIZING MANUFACTURING CONDITION FOR POLYARYLENE SULFIDE RESIN COMPOSITE, AND METHOD FOR MANUFACTURING RESIN COMPOSITE Final Rejection National Institute of Advanced Industrial Science and Technology
17948911 KINETIC LEARNING Final Rejection The Regents of the University of California
17922222 A METHOD FOR DETECTING REACTION VOLUME DEVIATIONS IN A DIGITAL POLYMERASE CHAIN REACTION Non-Final OA Roche Sequencing Solutions, Inc.
17881713 IMAGE ACQUISITION METHODS FOR SIMULTANEOUSLY DETECTING GENETIC REARRANGEMENT AND NUCLEAR MORPHOLOGY Non-Final OA Cornell University
18481469 DATA PROCESSING DEVICE FOR METABOLITE ANALYSIS Non-Final OA SHIMADZU CORPORATION

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Frequently Asked Questions

What is examiner Diana Patricia Sanford's allowance rate?

47.1% of resolved applications examined by Diana Patricia Sanford were allowed (17 resolved cases), compared with 44.0% across Art Unit 1687 over the last five years.

Does an interview help with examiner Diana Patricia Sanford?

This examiner's interview lift is +36.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Diana Patricia Sanford take to allow a patent?

Applications allowed by Diana Patricia Sanford took 1,661 days on average from filing to allowance.

Which art unit does examiner Diana Patricia Sanford work in?

Diana Patricia Sanford examines applications in Art Unit 1687 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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