What this record means
The record shows that ROT‑GARD is a live, Principal Register trademark owned by JH Biotech, Inc., a Delaware corporation, and it has been renewed as of August 22 2022. The registration covers “biological preparation to prevent disease in plants and seeds; soil amendment for agricultural and horticultural use” in International Class 001, so a similar name used for those kinds of agricultural or horticultural products would raise the closest record‑based concern. The record does not give JH Biotech control over every possible use of the word ROT‑GARD, especially outside the listed goods. The prosecution history shows the normal filing, publication, registration and subsequent Section 8/9 renewals, with the most recent renewal event on August 22 2022; no future deadline is listed in the data. The supplied history contains no oppositions, cancellations or court actions, so there are no visible enforcement signals. I'd treat this as a meaningful concern if you plan a name in the same plant‑health space.
Informational only - not legal advice.