John B. Gardiner
19Patents
12h-index
26Co-inventors
78Inventor score
Filing activity: Jul 31, 1974 → Jun 27, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4137185A | Stabilized imide graft of ethylene copolymeric additives for lubricants | Chemistry; Metallurgy | 116 | Expired |
| US4780228A | Viscosity index improver--dispersant additive useful in oil compositions | Chemistry; Metallurgy | 107 | Expired |
| US4089794A | Polymeric additives for fuels and lubricants | Chemistry; Metallurgy | 97 | Expired |
| US4144181A | Polymeric additives for fuels and lubricants | Chemistry; Metallurgy | 82 | Expired |
| US4219432A | Stabilized amide-imide graft of ethylene copolymeric additives for lubricants | Chemistry; Metallurgy | 60 | Expired |
| US5427702A | Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions | Chemistry; Metallurgy | 37 | Expired |
| US5744429A | Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions | Chemistry; Metallurgy | 29 | Expired |
| US4068056A | Aminated polymeric additives for fuel and lubricants | Chemistry; Metallurgy | 20 | Expired |
| US4113636A | Aminated polymeric additives for fuels and lubricants | Chemistry; Metallurgy | 20 | Expired |
| US4032700A | Process for the preparation of aminated polymers useful as additives for fuels and lubricants | Chemistry; Metallurgy | 19 | Expired |
| US4068058A | Aminated polymeric additives for fuel and lubricants | Chemistry; Metallurgy | 18 | Expired |
| US4051050A | Oil-soluble anionic-graft polymer of ethylene-propylene copolymer and anionically polymerizable monomer having utility as multifunctional V. I. improver for lubricating oils | Chemistry; Metallurgy | 17 | Expired |
| US5030370A | Novel dispersant viscosity index improver compositions | Chemistry; Metallurgy | 10 | Expired |
| US4069162A | Haze free oil additive compositions containing polymeric viscosity index improver and process for producing said compositions | Chemistry; Metallurgy | 9 | Expired |
| US4068057A | Aminated polymeric additives for fuel and lubricants | Chemistry; Metallurgy | 7 | Expired |
| US4139480A | Multifunctional alternating interpolymer lubricating oil additive | Chemistry; Metallurgy | 6 | Expired |
| US5156758A | Polymeric amides for multifunctional VI improvers | Chemistry; Metallurgy | 4 | Expired |
| US5006608A | Catalytic process for oxidative, shear accelerated polymer degradation | Chemistry; Metallurgy | 4 | Expired |
| US4000353A | Hydroxylated polymers useful as additives for fuels and lubricants | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.