MPEP § 1852 — Taking Into Account Results of Earlier Search(es) (Annotated Rules)

§1852 Taking Into Account Results of Earlier Search(es)

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 1852, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Taking Into Account Results of Earlier Search(es)

This section addresses Taking Into Account Results of Earlier Search(es). Primary authority: 37 CFR 1.104. Contains: 3 requirements, 4 permissions, and 3 other statements.

Key Rules

Topic

Statutory Authority for Examination

5 rules
StatutoryPermittedAlways
[mpep-1852-c43331895914fd8ad608580b]
International-Type Search Required for National Applications Filed After June 1, 1978
Note:
An international-type search must be conducted for all national applications filed on or after June 1, 1978.

(a) Examiner’s action.

(3) An international-type search will be made in all national applications filed on and after June 1, 1978.

Jump to MPEP Source · 37 CFR 1.104Statutory Authority for ExaminationExamination ProceduresExaminer's Action (37 CFR 1.104)
StatutoryInformativeAlways
[mpep-1852-b6fe4691daf594041b42852f]
Requirement for International-Type Search on U.S. Nonprovisional Applications Filed After June 1, 1978
Note:
The rule requires that an international-type search be conducted on all U.S. nonprovisional applications filed after June 1, 1978.

See MPEP § 1819. An international-type search is conducted on all U.S. nonprovisional applications filed after June 1, 1978.

Jump to MPEP Source · 37 CFR 1.104Statutory Authority for ExaminationExamination ProceduresExaminer's Action (37 CFR 1.104)
StatutoryInformativeAlways
[mpep-1852-03e5b69364bbfb1da9544dbb]
International-Type Search Required for U.S. Nonprovisional Applications Filed After June 1, 1978
Note:
All U.S. nonprovisional applications filed after June 1, 1978 must undergo an international-type search.

See MPEP § 1819. An international-type search is conducted on all U.S. nonprovisional applications filed after June 1, 1978.

Jump to MPEP Source · 37 CFR 1.104Statutory Authority for ExaminationExamination ProceduresExaminer's Action (37 CFR 1.104)
StatutoryRequiredAlways
[mpep-1852-eb29acc57ebdb308ebd0b7b3]
Requirement for Considering Foreign Office Search Results
Note:
Examiner must consider foreign office search results and cited documents provided by the applicant, unless not translated or copies are missing.

Where the applicant has requested the United States International Searching Authority (ISA/US) to take into account earlier search results from a foreign Office and where a copy of the earlier search results (and a translation into English where the search results are in a foreign language) and copies of the documents cited therein (other than copies of U.S. patents and U.S. patent application publications) have been provided, the examiner shall take into account such earlier search results. Where the earlier search results (including any required translation thereof) or any copies of the documents cited therein (other than copies of U.S. patents and U.S. patent application publications) have not been furnished and therefore are not of record in the file, whether the earlier foreign Office search results will be taken into account is at the examiner's discretion.

Jump to MPEP Source · 37 CFR 1.104Statutory Authority for ExaminationExamination ProceduresExaminer Docket Management
StatutoryRequiredAlways
[mpep-1852-aff849b5249dac9bfe0171ea]
Examiner's Discretion on Foreign Search Results
Note:
Determines whether to consider foreign search results not provided in the file.

Where the applicant has requested the United States International Searching Authority (ISA/US) to take into account earlier search results from a foreign Office and where a copy of the earlier search results (and a translation into English where the search results are in a foreign language) and copies of the documents cited therein (other than copies of U.S. patents and U.S. patent application publications) have been provided, the examiner shall take into account such earlier search results. Where the earlier search results (including any required translation thereof) or any copies of the documents cited therein (other than copies of U.S. patents and U.S. patent application publications) have not been furnished and therefore are not of record in the file, whether the earlier foreign Office search results will be taken into account is at the examiner's discretion.

Jump to MPEP Source · 37 CFR 1.104Statutory Authority for ExaminationExamination ProceduresExaminer Docket Management
Topic

International Searching Authority (ISA)

3 rules
StatutoryRequiredAlways
[mpep-1852-f60232effd449614a2e801f4]
ISA Must Consider Earlier Search Results If Requested
Note:
The International Searching Authority must prepare an international search report, taking into account the results of any earlier search if specifically requested by the applicant.

When specifically requested by the applicant, the examiner is required to prepare an international search report taking into account the results of an earlier search. The examiner can determine whether applicant has requested the ISA/US to use the results of an earlier search by inspecting Box No. VII of the PCT Request. Box No. VII of the Request also allows applicant to indicate that certain documents relating to the earlier search are either available to the Authority or are being transmitted thereto.

Jump to MPEP Source · 37 CFR 1.104International Searching Authority (ISA)International Search ReportInterviews in National Stage
StatutoryPermittedAlways
[mpep-1852-126524a56c292feca2e502f7]
ISA Must Use Results from Box VII of PCT Request
Note:
The International Searching Authority must use the results indicated in Box No. VII of the PCT Request if requested by the applicant.

When specifically requested by the applicant, the examiner is required to prepare an international search report taking into account the results of an earlier search. The examiner can determine whether applicant has requested the ISA/US to use the results of an earlier search by inspecting Box No. VII of the PCT Request. Box No. VII of the Request also allows applicant to indicate that certain documents relating to the earlier search are either available to the Authority or are being transmitted thereto.

Jump to MPEP Source · 37 CFR 1.104International Searching Authority (ISA)Interviews in National StageSearch in National Stage
StatutoryInformativeAlways
[mpep-1852-6a70ef43005400deca656030]
Documents Relating to Earlier Search Must Be Indicated
Note:
Applicants must indicate if documents from an earlier search are available or being transmitted to the Authority.

When specifically requested by the applicant, the examiner is required to prepare an international search report taking into account the results of an earlier search. The examiner can determine whether applicant has requested the ISA/US to use the results of an earlier search by inspecting Box No. VII of the PCT Request. Box No. VII of the Request also allows applicant to indicate that certain documents relating to the earlier search are either available to the Authority or are being transmitted thereto.

Jump to MPEP Source · 37 CFR 1.104International Searching Authority (ISA)Search in National StageRequest Content and Form
Topic

Interviews in National Stage

1 rules
StatutoryPermittedAlways
[mpep-1852-6e313a6a4e034c93d806472a]
International-Type Search Required for National Applications Filed After June 1, 1978
Note:
An international-type search must be conducted for national applications filed on or after June 1, 1978.
(a) Examiner’s action.
  • *****
  • (3) An international-type search will be made in all national applications filed on and after June 1, 1978.
  • (4) Any national application may also have an international-type search report prepared thereon at the time of the national examination on the merits, upon specific written request therefor and payment of the international-type search report fee set forth in § 1.21(e). The Patent and Trademark Office does not require that a formal report of an international-type search be prepared in order to obtain a search fee refund in a later filed international application.
Jump to MPEP Source · 37 CFR 1.104Interviews in National StageExamination ProceduresInternational Stage Fees
Topic

Effect of International Filing

1 rules
StatutoryPermittedAlways
[mpep-1852-4e0fc4da828df984fff3d186]
Request for International-Type Search Report During National Examination
Note:
A national application can obtain an international-type search report during the examination process upon specific request and payment of the fee, but it is not mandatory.

(a) Examiner’s action.

(4) Any national application may also have an international-type search report prepared thereon at the time of the national examination on the merits, upon specific written request therefor and payment of the international-type search report fee set forth in § 1.21(e).

Jump to MPEP Source · 37 CFR 1.104Effect of International FilingNationals and ResidentsReceiving Office (RO/US)
Topic

International Stage Fees

1 rules
StatutoryPermittedAlways
[mpep-1852-c2eb92ff1a8b51259b8d99c6]
International Search Report Not Required for Fee Refund
Note:
The Patent and Trademark Office does not require a formal international-type search report to obtain a search fee refund in a later filed international application.

(a) Examiner’s action.

The Patent and Trademark Office does not require that a formal report of an international-type search be prepared in order to obtain a search fee refund in a later filed international application.

Jump to MPEP Source · 37 CFR 1.104International Stage FeesNational Stage FeesInternational Searching Authority (ISA)
Topic

Nationals and Residents

1 rules
StatutoryPermittedAlways
[mpep-1852-799ea30dc42449e5d42ead90]
Use of Earlier Search Results in International Application
Note:
Applicants may request that previous search results from the same or another international searching authority be used for establishing an international search report.

PCT Rule 4.12 provides that the applicant may request that the results of an earlier international, international-type or national search carried out by the same or another International Searching Authority or by a national Office be used in establishing an international search report on such international application.

Jump to MPEP Source · 37 CFR 1.104Nationals and ResidentsReceiving Office (RO/US)International Searching Authority (ISA)

Citations

Primary topicCitation
Effect of International Filing
International Stage Fees
Interviews in National Stage
37 CFR § 1.21(e)
Statutory Authority for ExaminationMPEP § 1819
Nationals and ResidentsPCT Rule 4.12

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31