CPI Engineering Services, Inc.
5Patents
0Active
5Granted
28Portfolio score
Filing activity: May 27, 1988 → Jun 6, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5027606A | Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US4916914A | Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US5595678A | Lubricant composition for ammonia refrigerants used in compression refrigeration systems | Chemistry; Metallurgy | 25 | Expired |
| US5486302A | Lubricant composition for fluorinated refrigerants used in compression refrigeration systems | Chemistry; Metallurgy | 22 | Expired |
| US5612299A | Lubricant composition for fluorinated refrigerants used in compression refrigeration systems | Chemistry; Metallurgy | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.