David William Kravitz
83Patents
15h-index
72Co-inventors
87Inventor score
Filing activity: Jul 26, 1991 → Nov 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6029150A | Payment and transactions in electronic commerce system | Physics | 782 | Expired |
| US5231668A | Digital signature algorithm | Electricity | 214 | Expired |
| US5995625A | Electronic cryptographic packing | Physics | 212 | Expired |
| US6907127B1 | Hierarchical key management encoding and decoding | Electricity | 212 | Expired |
| US5867578A | Adaptive multi-step digital signature system and method of operation thereof | Electricity | 207 | Expired |
| US7162642B2 | Digital content distribution system and method | Electricity | 144 | Expired |
| US5832089A | Off-line compatible electronic cash method and system | Physics | 136 | Expired |
| US9356916B2 | System and method to use a cloud-based platform supported by an API to authenticate remote users and to provide PKI- and PMI-based distributed locking of content and distributed unlocking of protected content | Electricity | 99 | Active |
| US6957344B1 | Manufacturing trusted devices | Electricity | 61 | Expired |
| US6738905B1 | Conditional access via secure logging with simplified key management | Electricity | 50 | Expired |
| US9716595B1 | System and method for internet of things (IOT) security and management | Electricity | 42 | Active |
| US10425399B2 | Template-based distributed certificate issuance in a multi-tenant environment | Electricity | 35 | Active |
| US9270663B2 | System and method to enable PKI- and PMI-based distributed locking of content and distributed unlocking of protected content and/or scoring of users and/or scoring of end-entity access means—added | Electricity | 31 | Active |
| US7698570B2 | Digital content distribution system and method | Electricity | 31 | Active |
| US6353812B2 | Computer-based method and system for aiding transactions | Physics | 25 | Expired |
| US6975728B1 | Hierarchical key management | Electricity | 13 | Expired |
| US6853564B2 | Switched linear inductor circuit for switched power supply | Emerging Cross-Sectional Technologies | 11 | Expired |
| US9698993B2 | Hashing prefix-free values in a signature scheme | Electricity | 9 | Active |
| US10153908B2 | Secure communication of IOT devices for vehicles | Electricity | 8 | Active |
| US9832026B2 | System and method from Internet of Things (IoT) security and management | Electricity | 7 | Active |
| US8850199B2 | Hashing prefix-free values in a signature scheme | Electricity | 6 | Active |
| US9059945B2 | Work request processor | Physics | 6 | Active |
| US9838471B2 | Method and an apparatus for work request arbitration in a network processor | Physics | 6 | Active |
| US10540181B2 | Managing branch prediction information for different contexts | Physics | 5 | Active |
| US7343346B2 | Computer-based method and system for aiding transactions | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.