The Boring Company: $3B Series D, 1 patent family, and a thin-but-real moat
The Boring Company holds 1 patent family: 1 granted and 0 published and pending. Filing began in 2022, with the most recent published filing dated 2022-01-19. The families appear in 1 patent office: United States.Patent figures from Google Patents Public Data, reviewed 2026-09-15. Funding: $3B Series D, Andreessen Horowitz, Temasek and Valor Equity Partners, 2026-09-09.
The Boring Company develops tunnel-based transportation systems and infrastructure to move people and vehicles through underground routes.
The funding headline
The Boring Company raised $3B in a Series D, with Andreessen Horowitz and Temasek among its investors, announced 2026-09-09.
Behind that announcement is a patent position worth examining on its own terms.
Granted against pending
1 of 1 family is granted, or 100 percent.
A record weighted this way makes examination developments a subject in their own right.
The people on the filings
3 inventors are named across the portfolio.
Inventor names help organize an investigation. Ownership is determined by assignment records, not by who is listed.
The company it keeps
The same CPC groups drew Gree Electric Appliances Zhuhai, Schaeffler and Zhuhai Kaibang Motor Mft over the last five years.
A shared classification indicates a common field. It is a starting point for research, not a conclusion about competition.
Who has referenced the work
Patent records from Boeing, Maglev Aero and Safran cite these filings.
A citation establishes a reference and nothing more. Its usefulness grows alongside other evidence.
What happens next
The current position is a baseline. What changes around it carries more information than the count does.
What happens next
Which new filings appear as the current applications publish?
Do the granted claims track the product the company is selling?
Which organizations begin filing or citing in the same areas?
Does the assignment record still name the operating entity?
Following those together can distinguish a passing resemblance from a subject deserving deeper investigation.
Common questions
How many patents does The Boring Company have?
The Boring Company holds 1 patent family as reviewed in 2026-09: 1 granted and 0 published and pending.
How many of The Boring Company's patents are granted?
1 of the 1 family is granted, or 100 percent. The remaining 0 are published and still under examination.
What technology do The Boring Company's patents cover?
The Boring Company's claims cluster in electric motors (H02K). Recent filing titles include "rotary electric machine".
Where has The Boring Company filed patents?
The Boring Company's families appear in 1 patent office: United States.
Which companies file patents in the same areas as The Boring Company?
The same CPC groups drew Gree Electric Appliances Zhuhai, Schaeffler, Zhuhai Kaibang Motor Mft and Bayerische Motoren Werke over the last five years. Shared classification indicates a common technology field rather than direct competition.
Who cites The Boring Company's patents?
Patent records from Boeing, Maglev Aero, Safran and Epropelled cite The Boring Company's filings. A citation indicates a reference to the work, not evidence of commercial use.
Who invented The Boring Company's patents?
3 inventors are named across the portfolio. The most frequently named is Steven P Walker. Inventor names do not establish ownership, which is determined by assignment records.
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