Patent Intelligence · Domain Comparison
Clean EnergyvsMechanical Engineering
Side-by-side comparison across 8 patent dimensions: portfolio size, citation quality, concentration, prosecution speed, claim breadth, expiry opportunity, and filing velocity.
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
Mechanical Engineering
Patents
287
Citations
14,445
Avg citations
50.3
3yr CAGR
+27.0%
HHI
662
Expiring ≤2029
1.3%
Avg prosecution
35 mo
Avg claims
18.7
Head-to-Head Comparison
| Metric | Clean Energy | Mechanical Engineering |
|---|---|---|
| Total patents | 45 | 287▲ |
| Total citations | 1,623 | 14,445▲ |
| Avg citations/patent | 36.1 | 50.3▲ |
| 3-year CAGR | +71.0%▲ | +27.0% |
| HHI concentration | 775 | 662▲ |
| Expiring ≤2029 | 3.8%▲ | 1.3% |
| Avg prosecution (mo) | 40 | 35▲ |
| Avg claims/patent | 21.1▲ | 18.7 |
▲ = 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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