Prior Art Search Acceleration
61 patents in this list
Updated:
Prior art searching demands systematic analysis of millions of documents across multiple databases, languages, and jurisdictions. A typical comprehensive search evaluates 50-100 potentially relevant documents, each containing detailed technical disclosures that must be mapped to specific claim elements. The challenge is magnified when searching non-patent literature, which lacks the structured format of patent documents but often contains critical technical disclosures.
The fundamental challenge lies in balancing search breadth and precision while managing the cognitive load of analyzing complex technical relationships across large document sets.
This page brings together solutions from recent research—including AI-assisted claim element mapping, iterative classification-based refinement, concept-driven triage approaches, and automated search string optimization. These and other approaches focus on improving search accuracy while reducing the time required to identify and analyze relevant prior art.
1. Patent Document Retrieval Method Utilizing Machine Learning for Claim Element Parsing and Synonym Identification
Dizpersion Corporation, 2024
Method for searching for relevant patent documents using machine learning and AI techniques to improve the effectiveness and efficiency of patent searching. The method involves parsing claim elements, selecting keywords, identifying synonyms, forming search strings, ranking documents, determining citations, and mapping elements. This allows targeted searching of databases using user-defined elements instead of keywords, improving recall and reducing false positives compared to keyword-based searching.
2. Patent Document Retrieval System Utilizing Metadata and Semantic Conversion with Multi-Method Filtering
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD, BEIJING KINGSOFT CLOUD NETWORK TECHNOLOGY CO LTD, 2024
Patent document retrieval method that uses metadata and semantic conversion to improve efficiency and accuracy compared to keyword search. The method involves selecting a retrieval method: 1) similarity search using metadata fields like invention title, patent type, etc., 2) keyword search in metadata, or 3) semantic search using a summary field. For method 1, similarity to metadata fields filters doc IDs. For method 2, keywords filter doc IDs from metadata. For method 3, semantic similarity to summary field filters top 5 doc IDs.
3. Patent Management System with Claim Scope Determination and Prior Art Analysis Using Mapping, Mining, and Analytics Techniques
Black Hills IP Holdings, LLC, 2024
Patent management system that provides tools to help in decision making at each stage of the patenting process. The system allows quick claim scope determination, prior art analysis, portfolio management, and other tasks. It uses mapping, mining, and analytics techniques to organize, search, and visualize patent concepts. The system also provides features like expanded search results, claim similarity indexing, and highlighting key terms across claims. It aims to enable efficient patent research, comparison, and analysis.
4. Iterative Patent Search Method Using User-Guided Classification and Keyword Refinement
KKLAB TECH PTE LTD, KKLAB TECHNOLOGIES PTE LTD, 2023
Assisting patent retrieval using user selection instructions to iteratively refine and expand search criteria. The method involves selecting a patent document, extracting classification data and keywords, generating new search conditions based on the selected patent's classification and keywords, then searching for more documents matching those conditions. This iterative refinement allows refining and expanding the search beyond the initial search criteria.
5. Hybrid AI System for Patent Claims Analysis with Machine Learning-Driven Embedding and User-Guided Search Mechanisms
DAYSTROM INFORMATION SYSTEMS, LLC, 2023
A hybrid AI system for patent claims analysis that combines machine learning and user input to accurately search and analyze patent documents. The system allows users to initiate searches based on reference documents, narrow the search focus, and select sections. It uses ML to transform the document and claims into embeddings representing their meaning. Element-by-element searches find matches based on these embeddings. Confidence scores rank the results. The system provides feedback to improve future searches.
6. System for Semi-Automatic Patent Claims Analysis Using Preconditioning and Claim Construction Rules with AI-Based Ranking
Daystrom Information Systems, LLC, 2023
Semi-automatic patent claims analysis that improves the speed and accuracy of a computer or server when performing a patent search, particularly for infringement analysis. The analysis involves using preconditioning rules to determine relevant portions of a reference document, a query is submitted to find a set of patents that are similar to the reference document, a set of matching patents from the query are received and claim construction rules are used to determine how a meaning of claim elements of the patents will be ascertained in further analysis, Patent infringement rules and an artificial intelligence (AI) system are used to search the relevant portions of the reference document with the claim constructed claim elements of the patents returned from the search, the set of patents are ranked based on assigned confidence scores indicating a degree to which respective claim elements match the relevant portions of the reference document, and the results are presented to a client device.
7. Iterative Patent Search Method Using Classification Code and Tag-Based Criteria Extraction
KKLAB TECHNOLOGIES PTE. LTD., 2023
A method for assisting users in searching patents. The method involves enabling users to select and search within patent documents based on key criteria like classification codes and related tags. The system retrieves patent documents matching the initial search criteria. Users can then select one or more patents of interest and extract additional criteria like classification codes from them. The system generates a refined search using the extracted criteria to find more relevant patents. This iterative process allows users to navigate and refine patent searches using criteria specific to patents.
8. Iterative Patent Search System with Keyword Extraction and Criteria Refinement
KKLAB TECHNOLOGIES PTE. LTD., 2023
Patent search system that helps users find relevant patents by assisting with search criteria selection. The system receives an initial search criteria, then when a user selects a patent, it extracts keywords from that patent. The system generates a refined search with those keywords. This iterative process of selecting patents and extracting keywords allows focusing the search.
9. Method for Generating Search Strings from Content Analysis of Seed Documents
AON RISK SERVICES, INC. OF MARYLAND, 2022
Generating search strings from seed documents or collection of seed documents. The search strings are generated based on the content of the seed documents, the number of claims analyzed, the number of associated documents, and the number of search strings generated from the search strings.
10. System for Automatic Generation of Patent Application Templates via Prior Art Parsing and Sectional Filtering
Dennis J M Donahue, III, 2022
A system to automatically create patent application templates based on prior art references to reduce the time and expertise needed to draft patent applications. The system parses prior art documents to identify sections related to the invention. It then generates a template patent application by removing claims and sections from the prior art that are not relevant to the invention. The template can be edited by the drafter to insert the novel features of the invention.
11. Patent Search and Analysis Platform Integrating AI, Machine Learning, and Blockchain with Natural Language Processing
ERICH LAWSON SPANGENBERG, DANIEL LAWRENCE BORK, PASCAL ASSELOT, 2022
A platform for conducting patent searches and analyzing patent value using a combination of AI, machine learning, and blockchain technology. The platform leverages natural language processing to improve patent search relevance by analyzing similarities between claim limitations and prior art specifications. It also uses AI algorithms to rank prior art based on relevance to specific claim elements. The platform further provides tools for highlighting, weighting, and customizing search parameters.
12. User Interface for Filtering and Analyzing Patent Documents with Specific Drawing Search Capability
LEXISNEXIS, A DIVISION OF REED ELSEVIER INC., 2022
Searching, filtering, and analyzing large numbers of patent-related documents to find documents of interest to a user. It provides user interface tools for filtering and analyzing patent-related documents to find documents of interest. It also allows searching for specific patent drawings.
13. Patent Document Screening Method Using Concept Mapping and Automated Triage
Lucid Patent LLC, 2021
Data-driven method to efficiently screen a large number of patent documents for relevancy to a target subject matter using a triage approach. The method involves mapping key concepts from claims of the identified patent pool to quickly screen and rule out irrelevant patents. The concepts marked as "definitely not in target subject matter" are used to eliminate patents without manually reviewing each one.
14. Patent Similarity Search System Utilizing Claim Tree Diagrams and Word Set-Based Search Formulas
NANJING YINYOU DIGITAL TECH CO LTD, NANJING YINYOU DIGITAL TECHNOLOGY CO LTD, 2021
A method and device for searching similar patents using a claim tree and word sets to improve accuracy and efficiency compared to manual searching. The method involves generating a claim tree diagram from the patent claims, with each node representing a claim. Multiple word sets are generated from the patent text. Search formulas are created for each word set and used to search the patent database. The search results are mapped back to the claim tree nodes. Similarity between each patent and the original patent is calculated using a weighted model. The patent with highest similarity per node is retained. This set of similar patents is returned. The claim tree and word set approach helps find key retrieval information and improves patent search accuracy.
15. Patent Search System with Data-Driven Key Patent Identification Mechanism
NANJING CHANGYUAN INFORMATION TECH CO LTD, NANJING CHANGYUAN INFORMATION TECHNOLOGY CO LTD, 2021
Patent search system that improves efficiency by using data analysis to identify key patents in a technology field. The system has a patent database, data processing unit, and screening management unit. The processing unit analyzes patent data to find important metrics like citation counts and inventor affiliations. The screening management unit uses these metrics to automatically identify key patents in a search result, instead of manually reviewing each patent. This reduces time and improves efficiency compared to traditional patent searching.
16. Computer Systems and Methods Utilizing Patent-Based Parts Index for Document Search and Analysis
LexisNexis, a division of Reed Elsevier Inc., 2021
Computer systems and methods for searching, filtering, and analyzing large numbers of patent-related documents to find documents of interest to a user. The system utilizes a comprehensive patent-based parts index derived from the US patent corpus to identify and interrelate part expressions (i.e., part names) in patents. This allows users to search for drawings containing specific parts, search for patents with similar drawings to a selected drawing, and determine non-literal support for claim terms in patent specifications using conceptually related variants.
17. System for Enhancing Patent Literature Searches via Automated Search Term Expansion and Operator Classification
WERTINTELLIGENCE, 2021
Optimizing patent literature searches by taking a user's search formula and expanding it to a higher-quality search by adding relevant search terms and operators. The system receives a user's search formula, classifies it based on operators, adds additional relevant search terms to each group, combines the groups with operators to create a final optimized search formula, and provides that to the user. This expands and improves the user's initial search.
18. Hybrid AI System for Element-wise Patent Infringement Analysis with Contextual Relevance Identification
DAYSTROM INFORMATION SYSTEMS, LLC, 2021
Semi-automatic patent infringement analysis using hybrid artificial intelligence. The system narrows the focus of patent search results by identifying relevant portions of a reference document. It then uses artificial intelligence to compare claim elements of patents to those relevant sections. This provides more accurate infringement analysis compared to using machine learning alone. The AI determines word meanings, searches element by element, and outputs matches with confidence scores.
19. Patent Search System Utilizing Stem Extraction and Data Vectorization with User Feedback Integration
CANGZHOU YISHANG ENTERPRISE MAN CONSULTING CO LTD, CANGZHOU YISHANG ENTERPRISE MANAGEMENT CONSULTING CO LTD, 2021
Patent search system that improves efficiency and reduces user effort compared to traditional methods. The system uses stem extraction, data vectorization, and user feedback to enhance patent retrieval. It creates a stem index to extract stem words from patents, counts stem frequencies, and combines them into data vectors. Searching involves matching user input against vector statistics, displaying results, and allowing user evaluation to bias future searches. The system also removes common words to reduce stem overlap.
20. Method for Patentability Assessment Using Syntactic Analysis and Edit Distance Calculation
AI Samurai Inc., 2020
Patent evaluation and determination method for improving the accuracy of determining patentability with a high level of accuracy. The method includes receiving input from an invention sentence relating to an invention, a keyword extraction step of performing a syntactic analysis on the input invention sentence in units of words, and then extracting any search keyword in the invention sentence; a patent sentence group extraction step of extracting a patent sentence group in which the search keyword is contained from a database using the extracted search keyword; and a determination step of comparing the invention sentence and a sentence included in the patent sentence group and determining the patentability of the invention sentence, wherein the determination step includes determining the patentability of the invention sentence based on a result obtained by multiplying a reciprocal number of an edit distance of the sentence included in the patent sentence group by a length index of the invention sentence and a content rate of the search keyword.
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The prior art-finding process can be greatly improved by combining these developments with human skills and efficient search techniques. Inventors and patent experts can more successfully navigate the patenting process and improve their chances of getting a patent for their ideas by using these resources.