Beyond ‘Siri’ and ‘Alexa’ – Speech Artificial Intelligence Patents Come of Age

Speech AI patents

With a rapidly growing market that offers both, attractive returns on investment and the genuine ability to transform the way humans and machines interact with each other, I was keen to understand the economic value of patents reading on Conversational Artificial Intelligence.

Patents offer strategic insights, yet they are often overlooked by the business and investor community. Classified primarily as an esoteric field of law, the economic analysis of patents has gone by and large unnoticed.

I see things differently. I look at patents as an economic asset that helps generate income. Patents offer key intelligence, which is nowhere else available. Combined with economic data, this allows one to forecast market trends based on patents. It also opens up opportunities to commercialize patents. Such business opportunities can be detached from the classical approach of investing in companies, which may or may not be solid from a patent perspective.

Conversational AI – Exciting Upward Potential

Conversational Artificial Intelligence is on the rise. The market for Conversational Software is a prime example of platform businesses that thrive in the spirit of Open Innovation. Players, such as Apple or Google focus on digital assistants, but the market is also populated with Chatbots and voice experience technology.

The advantages for consumers are important. Say you want to book a holiday in Spain. Instead of filling out complicated forms online, you can simply have a chat with your computer, which can then point you to the holiday of your dreams, following a brief chat.

Analysts estimate a deal volume of 15.7  USD Billion and a Compounded Annual Growth Rate (CAGR) of 302% by 2023. (data does not reflect potential effects of Covid19).

While companies in the space seek to monetize on data generated during this process, patent ownership remains instrumental to fence one’s tech space.

A Brief Description of the Patent Space

The OxFirst analysis suggests that there is tough competition between the United States and China, with patents filed in the Republic of Korea emerging also as a key market.

 Top countries where AI patents were filed in the last 10 years





United States (USPTO)



China (SIPO)



Republic of Korea (KIPO)



 Source: OxFirst internal analysis[1]

A look at the key patent trends makes it apparent where companies focus primarily on. An economic patent analysis suggests that machine learning, semantic analysis, the interconnectivity between as well as neural combinations are top trends companies pursue in their patent strategies.

[1] Based on data from Espacenet.

Key Technology Focus in Conversational AI

Speech AI 

 Source: OxFirst internal analysis[1]

[1] ibid


Untapped Economic Opportunities?

Based on this information one can quite easily undertake a valuation of patents in that space. Patents on conversational AI can probably fetch licensing rates of 15%. Combined with an analysis of patent distribution in this space, as well as an expected market volume of 15.7 billion US, one can likely argue that even a small patent portfolio could fetch significant sums.

Even just a back of the envelope assessment like this suggests that a concerted patent strategy can allow firms to maximize revenues and allow investors to make educated investment decisions. Companies can enter into strategic alliance, re-assess their position vis-à-vis competitors and it can also allow them to re-mortgage their debt or review their relationships with their equity investors. From an investor’s point of view again it can help make better decisions. After all, every investor is keen to maximize returns while keeping risks minimal. An economic assessment of patents can just provide the necessary toolkit to do so. Against the many opportunities provided by assessing patents through an economic lens, it is time to embrace patents as economic assets.

The Author’s Background

Dr Roya Ghafele is the Managing Director of Oxfirst Ltd, an award- winning law and economics consultancy. She has held tenured lectureships (called ‘Assistant Professor’ in the US Academy) in law and international political economy with Oxford and Edinburgh University and served as an economist to the United Nation’s World Intellectual Property