How to Search for a Patent by Inventor Name

If you know who invented something, you can often use the inventor's name to find patents and published patent applications associated with that person.

Searching by inventor can be useful when researching a competing technology, investigating an inventor's previous work, looking for related patents, or trying to trace the development of an invention.

In this guide, we'll explain how to search for patents by inventor name using the U.S. Patent and Trademark Office (USPTO) and Google Patents, how to refine your results, and what to keep in mind when interpreting what you find.

Before you begin: If you're searching because you want to know whether your own invention may already exist, an inventor-name search is only one part of a broader patent search. Learn how to conduct a complete search in our How to Do a Patent Search: A Step-by-Step Guide for Inventors.

Why Search for Patents by Inventor Name?

Searching by inventor name can reveal patents and published applications associated with a particular person.

This can be useful in several situations.

Researching a Competitor

If you know that a competitor or another company is working on technology related to your invention, searching for patents associated with its inventors can reveal additional work that may not appear in a basic keyword search.

Investigating an Inventor's Previous Work

An inventor may have worked on multiple inventions over the course of a career. Searching by name can help you identify earlier patents and applications that provide additional context.

Finding Related Inventions

If you find a patent that is highly relevant to your invention, looking at its listed inventors can give you another way to expand your search.

An inventor who worked on one relevant invention may also appear on other patents covering related technology.

Expanding a Patent Search

Keyword searches can miss relevant patents because inventors and patent documents may use different terminology.

Searching by inventor gives you another way to approach the same research.

If you're still learning how patent searches work, start with our guide to How Do You Search Existing Patents?

How to Search for a Patent by Inventor Name Using the USPTO

The USPTO's Patent Public Search system allows you to search U.S. patents and published patent applications using an inventor's name.

The Basic Search interface includes Inventor Name as one of its searchable fields. The Advanced Search interface provides additional ways to construct more detailed searches.

Step 1: Open USPTO Patent Public Search

Go to the USPTO's Patent Public Search tool.

The USPTO provides access to U.S. patents and published patent applications through Patent Public Search.

Step 2: Choose Basic Search

If you're new to patent searching, the Basic Search interface is generally the easiest place to begin.

Select Inventor Name as the search field.

The USPTO's Basic Search interface allows you to search inventor names along with other fields such as applicant name, assignee name, publication number, publication date, and keywords.

Step 3: Enter the Inventor's Name

Enter the inventor's name into the search fields.

For example, if you were searching for an inventor named John Smith, you could enter:

First name: John

Last name: Smith

The USPTO's search interface provides guidance for searching inventor names and can be used to find U.S. patents and published patent applications associated with particular inventors.

Step 4: Review the Search Results

Once you run the search, Patent Public Search will return matching patent documents.

Depending on the search, results may include:

• Issued U.S. patents

• Published U.S. patent applications

• Patent or publication numbers

• Titles

• Inventor information

• Filing and publication dates

• Assignee information

Review the titles and dates first to identify results that appear relevant.

Then open individual documents to examine their abstracts, descriptions, claims, drawings, and other information.

Step 5: Refine the Search if Necessary

A common problem with inventor-name searches is getting too many results.

If the inventor has worked on many different technologies, you can narrow the search by combining the inventor's name with other search criteria.

For example, you might combine:

Inventor + keyword

Inventor + assignee

Inventor + publication date

Inventor + technology classification

The USPTO's Advanced Search interface provides additional search syntax and field-specific searching for more complex searches.

How to Search for Patents by Inventor Name Using Google Patents

Google Patents provides another convenient way to search for patents by inventor.

Its search system supports metadata searches using the inventor: field. Google specifically documents searches such as:

inventor

or

inventor:"Alexander Graham Bell"

You can also combine inventor searches with other search criteria.

Step 1: Open Google Patents

Open Google Patents and enter your search into the main search field.

Step 2: Use the Inventor Search Operator

Enter:

inventor: followed by the inventor's name.

For example:

inventor:"Alexander Graham Bell"

Using quotation marks can help when searching for a specific full name.

Google Patents also provides autocomplete suggestions for inventor and assignee fields as you enter a search.

Step 3: Review the Results

Google Patents results can show information such as:

• Patent or publication number

• Title

• Inventor

• Assignee

• Filing date

• Publication date

• Patent family information

• Abstract

• Classification information

You can open individual results to review the full patent document.

Step 4: Narrow the Results

If the inventor has many patents, combine the inventor search with another search term.

For example:

inventor:"John Smith" valve

or use another field such as an assignee or date restriction.

Google Patents supports additional metadata searches for fields such as assignee, filing date, publication date, country, status, and language.

What If You Get Too Many Results?

Some inventors have dozens or even hundreds of patent documents associated with their names.

If your search produces too many results, don't try to review everything individually.

Instead, narrow the search based on what you're actually trying to find.

Add a Keyword

If you're researching a particular technology, combine the inventor's name with a relevant keyword.

For example:

inventor:"John Smith" bicycle

This can be more useful than searching the inventor alone.

Add an Assignee

If you know the company associated with the invention, combine the inventor and company.

This can help separate relevant work from unrelated patents by the same inventor.

Narrow the Date Range

If you know approximately when the invention was developed, limiting the search to a particular period can reduce the number of results.

Look at Classifications

Patent classification systems can help identify groups of patents covering related technologies.

If you find one highly relevant patent, examine its Cooperative Patent Classification (CPC) codes and related documents. Those classifications can then be used to expand or refine your search.

What If You Can't Find the Inventor?

Not finding a person in a patent database does not necessarily mean that person has never been associated with a patent.

There are several possible reasons.

The Name May Be Listed Differently

Names can appear in different formats across records.

A search for a full name may not produce the same results as a search using a surname or a different version of the person's given name.

Try variations when appropriate.

The Person May Not Be the Listed Inventor

A person who helped develop or commercialize an invention is not necessarily listed as an inventor on the patent.

Patent inventorship is a legal concept, so don't assume that everyone involved in developing a product will appear as an inventor.

The Patent May Not Be Publicly Available

Not every patent-related filing will be publicly searchable at every point in the process.

For example, some patent applications may not yet have been published.

The Search May Be Too Narrow

Try searching the inventor's surname, combining the name with keywords, or using another patent database.

For a broader search strategy, see our Patent Search Guide.

Can You Search for a Patent by Inventor and Company?

Yes.

Searching by both inventor and company can be particularly useful when researching a specific technology or organization.

For example, you might search for an inventor associated with a particular company and then examine the patents connected to that combination.

This can help identify:

• Patents developed while an inventor worked for a company

• Related inventions assigned to the same organization

• Earlier patents associated with a technology

• Other inventors working on similar technologies

Keep in mind that the inventor and assignee are not necessarily the same person or entity.

An inventor is the person legally identified as having invented the claimed subject matter. The assignee is the person or organization to which rights in the patent have been assigned.

Can You Search for Patents by Inventor and Keyword?

Yes, and this is often one of the most useful ways to refine an inventor search.

Suppose you know that an inventor worked on a particular type of medical device.

Instead of searching the inventor's name alone, you could combine the inventor search with terms describing the technology.

This can help reduce irrelevant results and make it easier to identify patents related to the subject you're researching.

The same general principle applies to patent research more broadly: combining different search approaches can reveal results that a single keyword search might miss.

What Should You Do When You Find a Relevant Patent?

Finding a relevant patent is usually the beginning of the research process, not the end.

Once you find a potentially important document, examine it carefully.

Look at:

• The patent title

• Inventor names

• Assignee

• Filing date

• Priority information

• Abstract

• Drawings

• Description

• Claims

• Cited references

• Related patent documents

Pay particular attention to the claims.

The claims define the legal scope of protection provided by an issued patent, so a patent that looks similar based on its title or drawings may not necessarily cover the same invention.

If you're using your search to evaluate whether your own invention may be patentable, remember that finding a similar patent does not automatically mean your invention cannot receive patent protection.

Patentability depends on the relevant legal requirements and the prior art as a whole.

You can learn more about those requirements in How to Know If Your Invention Is Patentable.

Can an Inventor Search Find Prior Art?

An inventor-name search can help you discover potentially relevant prior art, but it should not be treated as a complete prior art search by itself.

For example, an inventor may have patents covering technology related to your invention, but other relevant prior art may have been created by completely different inventors.

Prior art can also include information outside patent databases, such as:

• Technical publications

• Academic papers

• Product documentation

• Websites

• Public demonstrations

• Videos

• Other publicly available information

The USPTO recommends searching for inventions similar to yours before applying for a patent, and its patent-search resources include both patent databases and other search resources.

Common Mistakes When Searching by Inventor Name

Searching Only One Name Variation

Try reasonable variations if you aren't finding expected results.

Assuming Every Result Is Relevant

An inventor may have worked in multiple fields. Review each result rather than assuming every patent is related to the technology you're researching.

Looking Only at the Title

Patent titles can be broad or vague.

Read the abstract, description, drawings, and claims before deciding whether a patent is relevant.

Stopping After Finding One Patent

One relevant patent can lead you to other useful documents.

Review related patents, cited references, classifications, inventors, and assignees to expand your research.

Assuming a Search Proves Patentability

A search can help you identify potentially relevant prior art, but it cannot guarantee that an invention is patentable.

Patentability involves legal analysis of the relevant prior art and applicable requirements.

USPTO vs. Google Patents: Which Should You Use?

Both can be useful, and you don't necessarily need to choose only one.

USPTO Patent Public Search is the official U.S. patent search system and provides access to U.S. patents and published patent applications. Its Basic Search is designed to make common searches easier, while Advanced Search provides more sophisticated search capabilities.

Google Patents provides a user-friendly search interface and supports inventor, assignee, date, country, status, classification, and other search restrictions.

For preliminary research, many inventors can benefit from using both.

If you're doing an important patentability search, however, remember that online searching is a research tool, not a guarantee that every relevant piece of prior art has been found.

Final Thoughts

Searching for a patent by inventor name can be a powerful way to expand your patent research.

The USPTO allows you to search U.S. patents and published applications by inventor name, while Google Patents provides another convenient way to find patents associated with particular inventors.

The most useful approach is often to combine inventor searches with keywords, assignees, dates, classifications, and other search methods.

If you're researching your own invention, don't stop with an inventor search. Start with a broader patent search, investigate the relevant prior art, and carefully review the patents and applications you find.

For a complete overview of the research process, continue with our [How to Do a Patent Search: A Step-by-Step Guide for Inventors].

Continue Learning

How Do You Search Existing Patents? — Start with the basics of finding existing patents and similar inventions.

How to Do a Patent Search — Learn how to conduct a broader patent search and evaluate potential prior art.

How to Know If Your Invention Is Patentable — Understand the basic requirements that determine whether an invention may qualify for patent protection.

Patent Filing Process — Learn what happens after you've completed your patent research and are ready to consider filing.

How Long Does a Patent Take? — Understand how long the U.S. patent process can take from filing through examination.

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