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PatentBrief

Patent Intelligence · Innovation Velocity

Where is innovation accelerating?

Patent filing rates reveal where investment and research effort is compounding. 2019–2024 CAGR across 12 technology domains — which areas went from hundreds to thousands of annual filings.

Fastest growing

Telecommunications

Overall trend

Stable

Total filings change

170 → 218

Patent Filing Growth — 2019 to 2024

CAGR = compound annual growth rate. Sparkbars show filing volume per year (each bar width = filings ÷ cross-domain max).

Telecommunications

Fast
+12.3% /yr28 → 50+22 total

2019

2020

2021

2022

2023

2024

Semiconductors

Fast
+11.4% /yr7 → 12+5 total

2019

2020

2021

2022

2023

2024

Software

Moderate
+9.8% /yr27 → 43+16 total

2019

2020

2021

2022

2023

2024

Consumer Electronics

Moderate
+7.4% /yr28 → 40+12 total

2019

2020

2021

2022

2023

2024

AI & Machine Learning

Moderate
+3.3% /yr17 → 20+3 total

2019

2020

2021

2022

2023

2024

Biotechnology

Moderate
+1.2% /yr16 → 17+1 total

2019

2020

2021

2022

2023

2024

Mechanical Engineering

Moderate
+1.1% /yr17 → 18+1 total

2019

2020

2021

2022

2023

2024

Clean Energy

Declining
-5.6% /yr8 → 6-2 total

2019

2020

2021

2022

2023

2024

Gene Editing

Declining
-7.8% /yr3 → 2-1 total

2019

2020

2021

2022

2023

2024

Automotive

Declining
-9.0% /yr8 → 5-3 total

2019

2020

2021

2022

2023

2024

Pharmaceuticals

Declining
-14.6% /yr11 → 5-6 total

2019

2020

2021

2022

2023

2024

Tier definitions

Explosive: ≥25% CAGR
Fast: 10–25% CAGR
Moderate: 0–10% CAGR
Slowing: -5–0% CAGR
Declining: < -5% CAGR

CAGR = (2024 filings ÷ 2019 filings)1/5 − 1. Note: 2024 data may be incomplete for late-filed patents not yet published.

What acceleration signals

Rapid filing growth often precedes commercial waves by 3-7 years. AI/ML patent filing surged in 2017-2020; commercial AI products followed in 2022-2024. Gene editing showed explosive growth before CRISPR became a household term.

Why slow growth isn't bad

Established fields like mechanical engineering have stable, high-volume filing — slow CAGR on a large base still means thousands of new patents per year. Context matters: look at absolute counts, not just growth rate.

Filing lag caveat

Patents are published 18 months after filing. 2024 filings may be underrepresented if they haven't yet published. The 2019-2023 comparison is more reliable than 2019-2024 for the most recent cohort.

Filing Trends by Domain →Company Filing Momentum →Concentration Index →All Landscapes →