Control of Light Intensity Using Pulses of a Fixed Duration and Frequency
A patent family: one line of work, grouped by real continuity rather than by a technology label
inferred from titles. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.
| Patent | Title | Holder | Status | Expires | Time remaining | Confidence |
|---|---|---|---|---|---|---|
| US 8,421,368 | Control of Light Intensity Using Pulses of a Fixed Duration and Frequency In force · High confidence | Saco Technologies Inc. | In force | High confidence | ||
| US 7,598,683 | Control of Light Intensity Using Pulses of a Fixed Duration and Frequency In force · High confidence | Saco Technologies Inc. | In force | High confidence | ||
| US 8,604,709 | Methods and Systems for Controlling Electrical Power to DC Loads In force · High confidence | Greenvision Group Technologies Corporation | In force | High confidence | ||
| US 8,903,577 | Traction System for Electrically Powered Vehicles In force · High confidence | Greenvision Group Technologies Corporation | In force | High confidence |
4 of 4 records shown. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.
2 of these are in force and held by Saco Technologies.
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.