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
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
Mechanical Engineering
Patents
317
Citations
14,602
Avg citations
46.1
3yr CAGR
+20.1%
HHI
562
Expiring ≤2029
3.2%
Avg prosecution
35 mo
Avg claims
19.2
Head-to-Head Comparison
| Metric | Clean Energy | Mechanical Engineering |
|---|---|---|
| Total patents | 83 | 317▲ |
| Total citations | 1,987 | 14,602▲ |
| Avg citations/patent | 23.9 | 46.1▲ |
| 3-year CAGR | +2.5% | +20.1%▲ |
| HHI concentration | 431▲ | 562 |
| Expiring ≤2029 | 14.1%▲ | 3.2% |
| Avg prosecution (mo) | 40 | 35▲ |
| Avg claims/patent | 20.5▲ | 19.2 |
▲ = 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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