MPR Corporation
Washington, DC, US· latest recorded location
MPR Corporation is named on 5 US grants and 0 published applications in this corpus. Its most frequent classification is B65B (Machines, apparatus or devices for, or methods of, packaging articles or materials).
- Granted patents
- 5
- Published applications
- 0
- Inventors
- 4
- Granted in 2026 so far
- 0
- Most recent grant
- 4 Dec 1990
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
By publication year.
Technology areas
Share of 5 documents
Recent patents
- Control system for a nuclear steam power plant4 Dec 1990US 4,975,238 A
- Tear away top structure for a rectangular paperboard container27 Mar 1990US 4,911,305 A
- Rectangular paperboard package21 Mar 1989US 4,813,545 A
- Apparatus and method for packaging a product in individual packets30 Dec 1986US 4,631,901 A
- Method and apparatus for making and filling packets with a product8 Oct 1985US 4,545,180 A
No published applications.
Most cited
By later US patents
- Apparatus and method for packaging a product in individual packets56US 4,631,901 A1986
- Method and apparatus for making and filling packets with a product46US 4,545,180 A1985
- Control system for a nuclear steam power plant19US 4,975,238 A1990
- Tear away top structure for a rectangular paperboard container9US 4,911,305 A1990
- Rectangular paperboard package5US 4,813,545 A1989