A patent is an asset — one with a price associated with it when it comes to procuring a loan for your business. Photo via Getty Images

For companies and leaders, patents represent important assets. They’re a marker of innovation and tech development. But patents do so much more than protect intellectual property. Firms increasingly deploy them as collateral to secure loans. Between 1995 and 2013, the number of patents pledged as loan collateral increased from about 10,000 to nearly 50,000. Forty percent of U.S. patenting firms have used patents as collateral.

However, patents are intangible assets, and their liquidity and liquidation value are difficult to assess. To evaluate an individual patent, lenders must consider the invention space to which the patent belongs. A patent’s linkage to prior inventions can provide important information for lenders, as the linkage affects the extent to which the patent under consideration may be redeployed and potentially purchased by other firms in the case of loan default.

Rice Business professor Yan Anthea Zhang examined more closely how this market operates and how both lenders and borrowers can make more informed decisions on which patents make appealing collateral. In their paper, “Which patents to use as loan collateral? The role of newness of patents' external technology linkage,” Zhang, who specializes in strategic management, and her co-authors studied the data on 107,180 U.S. semiconductor patents owned by 436 U.S. firms. The team focused on semiconductor patents because the semiconductor industry involves intensive innovation, which leads to many patent applications and grants. The market for semiconductor patents is an active and well-functioning market, given specialization in different stages of the innovation process and the growing technological market. Information on whether a patent was used as loan collateral came from the USPTO Patent Assignments Database.

Zhang and her colleagues argue that lenders prefer patents linked to prior inventions that are relatively new because these patents are riding on recent technology waves and are less likely to become obsolete. As a result, such patents are likely to remain deployable to other firms in the future. However, patents that are based upon too new prior inventions might not prove to be commercially viable and carry higher risk for lenders.

As a result of this research, Zhang and her colleagues found an inverted U-shape relationship to demonstrate the likelihood that a patent will be used as loan collateral. On one end, patents based upon the newest prior inventions, on the other, patents based upon mature prior inventions. The curve of the U-shape represents the sweet spot for patent collateral—the patents’ technological base is new enough to be relevant and competitive with other firms in its invention space, but not so new that it has yet to prove market success.

Zhang’s team also found that the impact of external linkage also varies depending on borrower attributes, especially the borrowers’ expertise in the invention space. If a borrower is a technological leader in the invention space, the market tends to give the borrower credit, and as a result, even if its patents are based upon very new prior inventions, its patents are still likely to be accepted as collateral.

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This article originally ran on Rice Business Wisdom and was based on research from Yan Anthea Zhang, the Fayez Sarofim Vanguard Professor of Management at Rice Business.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.