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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

61

Citations

3,639

Avg citations

59.7

3yr CAGR

+26.0%

HHI

524

Expiring ≤2029

0.0%

Avg prosecution

38 mo

Avg claims

25.7

Clean Energy

Patents

45

Citations

1,623

Avg citations

36.1

3yr CAGR

+71.0%

HHI

775

Expiring ≤2029

3.8%

Avg prosecution

40 mo

Avg claims

21.1

Head-to-Head Comparison

MetricAutomotiveClean Energy
Total patents6145
Total citations3,6391,623
Avg citations/patent59.736.1
3-year CAGR+26.0%+71.0%
HHI concentration524775
Expiring ≤20290.0%3.8%
Avg prosecution (mo)3840
Avg claims/patent25.721.1

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

Grant Trend 2015–Present

Patents granted per year by domain.

2016

2018

2022

2024

Domain A

Domain B

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