Robert Stewart
33Patents
10h-index
42Co-inventors
75Inventor score
Filing activity: Sep 22, 1981 → Apr 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5340178A | Vehicle bumper beam | Performing Operations; Transporting | 55 | Expired |
| US5080410A | Vehicle bumper beam | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6000738A | Force-absorbing vehicle bumper | Performing Operations; Transporting | 49 | Expired |
| US5080411A | Vehicle bumper structure | Performing Operations; Transporting | 47 | Expired |
| US4451827A | Local area communication network | Electricity | 45 | Expired |
| US6227321A | Structural tube for a motor vehicle unibody | Performing Operations; Transporting | 26 | Expired |
| US5165355A | Method and apparatus for handling hosiery blanks | Textiles; Paper | 26 | Expired |
| US5080412A | Vehicle and bumper beam combination | Performing Operations; Transporting | 25 | Expired |
| US5061108A | Attaching arrangement for vehicle plastic panel | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5997057A | Bumper end cap | Performing Operations; Transporting | 14 | Expired |
| US7047292B1 | Prioritizing network management traffic | Electricity | 10 | Expired |
| US6640269B1 | Method and apparatus for assisting communication of information between two processes | Physics | 6 | Expired |
| US6721824B1 | Method and apparatus for assisting communication of information between two processes | Physics | 5 | Expired |
| US6643866B1 | Toilet-seat positioner | Human Necessities | 5 | Expired |
| US8430315B2 | Data encoding and decoding | Physics | 4 | Active |
| US7871741B2 | Method of producing diffractive structures in security documents | Emerging Cross-Sectional Technologies | 4 | Active |
| US7519598B2 | Prioritizing network management traffic | Electricity | 3 | Active |
| US6484175B1 | Method and apparatus for providing network management data | Electricity | 3 | Expired |
| US4497436A | Venting system for insulating window shade | Fixed Constructions | 2 | Expired |
| US9336641B2 | Authentication apparatus and method | Physics | 1 | Active |
| US9739597B2 | Method of authenticating a polymer film by thickness measurement with a white light interferometer | Physics | 1 | Active |
| US9878572B2 | Security document | Performing Operations; Transporting | 1 | Active |
| US12011945B2 | Methods for designing and producing a security feature | Performing Operations; Transporting | 0 | Active |
| US10175039B2 | Authentication of articles by white light interferometry and birefringence | Physics | 0 | Active |
| US12227021B2 | Security document including a transparent window formed in the substrate thereof | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.