Patrick Perrin
26Patents
12h-index
31Co-inventors
81Inventor score
Filing activity: Mar 6, 1989 → Jul 6, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5979822A | Apparatus for dispensing sheet material from a roll of sheet material | Human Necessities | 102 | Expired |
| US5310129A | System for sequentially dispensing web material from a plurality of rolls | Human Necessities | 72 | Expired |
| US6237871A | Paper towel transfer apparatus | Human Necessities | 58 | Expired |
| US5950863A | Sheet dispenser insert | Human Necessities | 50 | Expired |
| US5873542A | Dispenser for feeding sheet material from sequential rolls | Human Necessities | 47 | Expired |
| US5690299A | Dispenser for feeding sheet material from sequential rolls | Human Necessities | 42 | Expired |
| US6822039B1 | Invertible emulsions stabitised by amphiphilic polymers and application to bore fluids | Chemistry; Metallurgy | 41 | Expired |
| US7262152B2 | Reversible emulsions stabilized by amphiphilic polymers and application to drilling fluid | Chemistry; Metallurgy | 39 | Expired |
| USD384877S | Bracket | General | 34 | Expired |
| US7500420B2 | Paper towel dispenser apparatus | Emerging Cross-Sectional Technologies | 20 | Active |
| USD312180S | Dispenser cabinet for paper towels | General | 18 | Expired |
| US5971335A | Holder for dispensing containers | Human Necessities | 15 | Expired |
| US5125548A | Paper towel dispenser cabinet with heat sink | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5823353A | Combination business card case and display case | Physics | 12 | Expired |
| US4961796A | System for bonding objects together | Performing Operations; Transporting | 10 | Expired |
| US6962013B1 | License plate frame | Performing Operations; Transporting | 9 | Expired |
| USD409664S | Card holder | General | 8 | Expired |
| US5758853A | Holder for dispensing containers | Human Necessities | 7 | Expired |
| US8387787B1 | Toilet seat cover refill package | Performing Operations; Transporting | 5 | Active |
| US7928039B2 | Reversible emulsions stabilized by amphiphilic polymers | Chemistry; Metallurgy | 1 | Active |
| US7572863B2 | Hydrophobically modified poly(acrylic acid) [PAA] and process of preparation thereof | Chemistry; Metallurgy | 0 | Active |
| US10940336B2 | Method of encapsulating a liquid active | Human Necessities | 0 | Active |
| US11401390B2 | Polymer membrane and methods of manufacturing thereof | Chemistry; Metallurgy | 0 | Active |
| US11498049B2 | Process for producing a calcium phosphate reactant, reactant obtained and use thereof in the purification of liquid effluents | Chemistry; Metallurgy | 0 | Active |
| US10814303B2 | Process for producing a calcium phosphate reactant, reactant obtained and use thereof in the purification of liquid effluents | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.