Connecticut inventionINDEX August 2026: 0.95% (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 Connecticut inventionINDEX Scores

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

The August 2026 Connecticut inventionINDEX score reached 0.95% with a D+ rating, representing a modest recovery from July 2026 when the index dipped to 0.89% with a D grade. When placed alongside historical benchmarks across the recorded 60-month window, the current figure sits slightly below the overall historical average of roughly 0.96%. Although the August 2026 result reflects a clear rebound from the multi-year floor of 0.82% registered in November 2024, it remains considerably below the historical peak of 1.19% set in August 2021. The recent momentum reflects a broader pattern of stabilization within the D+ to C+ range after several months of lower performance earlier in 2026.

Over the full five-year trajectory, the index exhibits periodic fluctuations rather than sustained directional trends. High points such as 1.15% in August 2023 and 1.12% in January 2023 demonstrate that Connecticut periodically achieves strong innovation metrics, reaching B-level ratings. However, the last twelve months ending in August 2026 averaged 0.93%, reflecting a prolonged period dominated by ratings between D- and C+. The dominant rating over the entire dataset remains C- with 15 occurrences, followed closely by D+ and D. This long-term distribution suggests that while systemic collapses below 0.85% are uncommon, elevated performance above 1.10% has become increasingly rare in recent cycles.

Achieving higher grades and elevated scores yields substantial macroeconomic and institutional benefits for the region. Stronger ratings signal robust research output, higher patent filing velocity, and efficient commercialization pathways across academic and private sectors. Higher scores boost venture capital confidence, attracting institutional investors seeking high-growth technology and life science ventures. Furthermore, strong index momentum enhances talent retention by encouraging local research institutions, startups, and established enterprises to expand their research and development commitments within the state.

Conversely, persistent lower scores carry significant economic liabilities and operational risks for the state innovation landscape. Low ratings highlight structural bottlenecks, including reduced venture funding, lagging intellectual property generation, or sluggish commercialization of research. Prolonged slumps in the index risk triggering talent migration toward more dynamic regional tech hubs, weakening local competitiveness. Additionally, depressed scores hamper public-private partnerships and discourage corporate research investment, creating a self-reinforcing cycle of stagnant growth and diminished market influence.

Discussion:

In August, the Connecticut inventionINDEX scored a negative sentiment which was higher than the previous year’s average and outperformed the upward trend for the year. This is similar 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 Connecticut office provides R&D tax credit consulting and advisory services to Bridgeport, New Haven, Stamford, Hartford, Waterbury, Norwalk, Danbury, New Britain, Bristol and Meriden

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.

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