Individual holder

SCHWELLENBACH DONALD D

1 granted patent·302 citations·filing 19781978

Individually held — no corporate assignee on record.

Technology mixB06B1B65G1Y10T1

Top patents by PatentIndex Score

1 record

Join the waitlist — get patent alerts

Get an alert when SCHWELLENBACH DONALD D files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →