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PatentBrief

Patent Intelligence · Domain Comparison

AutomotivevsClean Energy

Side-by-side comparison across 8 patent dimensions: portfolio size, citation quality, concentration, prosecution speed, claim breadth, expiry opportunity, and filing velocity.

Automotive

Patents

97

Citations

3,968

Avg citations

40.9

3yr CAGR

-5.9%

HHI

297

Expiring ≤2029

1.4%

Avg prosecution

36 mo

Avg claims

23.5

Clean Energy

Patents

83

Citations

1,987

Avg citations

23.9

3yr CAGR

+2.5%

HHI

431

Expiring ≤2029

14.1%

Avg prosecution

40 mo

Avg claims

20.5

Head-to-Head Comparison

MetricAutomotiveClean Energy
Total patents9783
Total citations3,9681,987
Avg citations/patent40.923.9
3-year CAGR-5.9%+2.5%
HHI concentration297431
Expiring ≤20291.4%14.1%
Avg prosecution (mo)3640
Avg claims/patent23.520.5

▲ = higher is better for that metric. HHI: lower = more competitive landscape.

Grant Trend 2015–Present

Patents granted per year by domain.

2016

2018

2020

2022

2024

Domain A

Domain B

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