Polydrain, Inc.
Troutman, NC, US· latest recorded location
Polydrain, Inc. is named on 6 US grants and 0 published applications in this corpus. Its most frequent classification is E01C (Construction of, or surfaces for, roads, sports grounds, or the like).
- Granted patents
- 6
- Published applications
- 0
- Inventors
- 6
- Granted in 2026 so far
- 0
- Most recent grant
- 21 Jun 1988
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
By publication year.
Technology areas
Share of 6 documents
Recent patents
- Dual containment channel for fluids21 Jun 1988US 4,751,945 A
- Sidewall extension for drain channel system and method for extending the continuous slope of a drainage channel system3 Feb 1987US 4,640,643 A
- Drainage channel11 Nov 1986US 4,621,939 A
- Slotted drainage grate with support19 Nov 1985US 4,553,874 A
- Slotted drainage grate with support7 May 1985US 4,515,498 A
No published applications.
Most cited
By later US patents
- Sidewall extension for drain channel system and method for extending the continuous slope of a drainage channel system55US 4,640,643 A1987
- Drainage channel53US 4,621,939 A1986
- Slotted drainage grate with support48US 4,553,874 A1985
- Drainage channel with means for maintaining proper slope during installation44US 4,498,807 A1985
- Slotted drainage grate with support38US 4,515,498 A1985