June 2026: 0.93% (D+ grade)

Maine inventionINDEX June 2026: 0.93% (D+ grade)

The inventionINDEX measures innovation output by comparing GDP growth with patent production growth.

Anything over C grade is positive sentiment; anything under C is negative outlook/sentiment. Using that sentiment, it is possible to observe trends over time, and also compare states/countries. In doing so, we can predict which states have the best chance to recover economically from the pandemic (or any other economic incident that may occur).

Historical Maine inventionINDEX Scores

The Maine inventionINDEX score for the past 12 months is shown in the table below.

The Maine inventionINDEX for June 2026 holds steady at 0.93 percent, carrying a D+ rating that mirrors the performance of the preceding month. While this indicates a period of stabilization after a volatile spring, it highlights a modest recovery from the sharp decline in April 2026, when the index dropped to 0.71 percent and received a failing grade. Despite avoiding another drop, the current score fails to capture the momentum established during the opening months of 2026, when February achieved a stronger 1.10 percent and a C+ rating. This short-term perspective demonstrates that while the immediate downward pressure has eased, the index remains stuck in a lower tier compared to its potential earlier in the year.

Examining the broader 60-month historical trajectory reveals that a D+ rating is a recurring baseline for the index, yet it sits substantially below historical high-water marks. The data illustrates a pattern of notable volatility, highlighted by standout peaks such as March 2024, when the index reached an exceptional 1.78 percent with an A+ rating, and October 2023, which saw a 1.50 percent score and an identical grade. Conversely, the current 0.93 percent position represents an improvement over historical troughs, such as the 0.65 percent scores recorded in September and February of 2023. This long-term view underscores that while the current index is insulated from absolute historic lows, it currently lacks the robust upward surges that characterized previous cyclical peaks.

Achieving a higher grade on the inventionINDEX carries profound positive outcomes for the regional economy and the broader innovation ecosystem. When the index climbs into the B and A categories, it reflects a surge in patent activity, increased commercialization of new technologies, and a heightened level of entrepreneurial engagement. Higher scores serve as a powerful signal to venture capitalists and corporate partners, indicating that Maine is a fertile ground for high-growth investments. This influx of capital and interest typically accelerates the creation of high-wage jobs, fosters collaboration between academic institutions and private enterprises, and elevates the state’s profile as a leader in modern technological development.

On the other hand, prolonged periods characterized by lower scores and grades carry concerning negative implications for sustainable economic growth. A persistent D+ or F rating suggests a slowdown in research and development funding, a potential stagnation in intellectual property generation, and a weakening competitive position relative to other states. Over time, these lower marks can lead to an innovation deficit, making it difficult for local startups to secure crucial early-stage financing and potentially causing top-tier technical and entrepreneurial talent to migrate to more dynamic regions. Addressing these structural challenges is vital for shifting the index away from its current baseline and steering it back toward its historical peaks.

Discussion:

In June, the Maine inventionINDEX scored a negative sentiment which was lower than the previous year’s average but outperformed the downward trend for the year. This is in contrast to the prior 12 months, which experienced an upward trend.

As the economy continues to stabilize in the post-pandemic era, it remains uncertain whether any backlog of applications still exists or if the department has returned to normal processing timelines. The inventionINDEX could also be affected by lingering consequences from the pandemic, such as company closures, reduced workforces, and limited R&D capabilities, which may still be impacting current operations.

Learn More:
Are you thinking of patenting any of your bright ideas? Did you know your research work could be eligible for the R&D Tax Credit and you can receive up to 14% back on your expenses? To find out more, please check out our free online eligibility test.

Swanson Reed’s Maine office provides R&D tax credit consulting and advisory services to Portland, Lewiston, Bangor, South Portland and Auburn

Feel free to book a quick teleconference with one of R&D tax specialists if you would like to learn more about R&D tax credit opportunities.

Who We Are:

Swanson Reed is the largest Specialist R&D tax credit advisory firm in the United States. With offices nationwide, we are one of the only firms globally to exclusively provide R&D tax credit consulting services to our clients. We have been exclusively providing R&D tax credit claim preparation and audit compliance solutions for over 30 years.

Swanson Reed hosts daily free webinars and provides free IRS CE and CPE credits for CPAs. For more information please visit us at www.swansonreed.com/free-webinars or contact your usual Swanson Reed representative.