Process Evaluation and Development Corporation
Dallas, TX, US· latest recorded location
Process Evaluation and Development Corporation is named on 9 US grants and 0 published applications in this corpus. Its most frequent classification is D01B (Mechanical treatment of natural fibrous or filamentary material to obtain fibres of).
- Granted patents
- 9
- Published applications
- 0
- Inventors
- 4
- Granted in 2026 so far
- 0
- Most recent grant
- 26 Dec 1989
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
By publication year.
Technology areas
Share of 9 documents
- D01BMechanical treatment of natural fibrous or filamentary material to obtain fibres of6
- D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials3
- B03BSeparating solid materials using liquids or using pneumatic tables or jigs2
- D21BFibrous raw materials or their mechanical treatment2
- C08BPolysaccharides1
- C08HDerivatives of natural macromolecular compounds1
- D21DTreatment of the materials before passing to the paper-making machine1
- D21HPulp compositions1
- Y10TTechnical subjects covered by former us classification1
Recent patents
- Crotalaria juncea paper pulps26 Dec 1989US 4,889,591 A
- Process for making a pulp from bamboo15 Aug 1989US 4,857,145 A
- Thermomechanical digestion process for enhancing the brightness of cellulose pulp using bleachants25 Aug 1987US 4,689,117 A
- Fiber depither10 Feb 1987US 4,641,792 A
- Fiber washer13 Jan 1987US 4,635,322 A
No published applications.
Most cited
By later US patents
- Process for making a pulp from bamboo31US 4,857,145 A1989
- Fiber depither10US 4,641,792 A1987
- Thermomechanical digestion process for enhancing the brightness of cellulose pulp using bleachants9US 4,689,117 A1987
- Method for cleaning bagasse fiber using a U-shaped wash path8US 3,992,754 A1976
- Bagasse depithing5US 4,231,136 A1980