Rambus has a total of 5291 patents globally, out of which 3556 have been granted. Of these 5291 patents, more than 54% patents are active. The United States of America is where Rambus has filed the maximum number of patents, followed by Europe and China. Parallelly, the United States of America seems to be the main focused R&D centre and also is the origin country of Rambus.
Rambus was founded in 1990 by Mark Horowitz and Mike Farmwald. Rambus designs develops, licenses, and markets high-speed chip-to-chip interface technology to enhance the performance and cost-effectiveness of consumer electronics, computer systems, and other electronic products. The Company licenses semiconductor companies to manufactures and sells memory and logic ICs incorporating Rambus interface technology. As of September 2022, Rambus has a market cap of $2.83 Billion.
Do read about some of the most popular patents of Rambus which have been covered by us in this article and also you can find Rambus patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Rambus patent portfolio.
How many patents do the Founder and CEO of Rambus have?
The Founder Mark Horowitz has 374 patents, Mike Farmwald has 0 patents and CEO Luc Seraphin have 0 patents.
How many patents does Rambus have?
Rambus has a total of 5291 patents globally. These patents belong to 1568 unique patent families. Out of 5291 patents, 2873 patents are active.
How Many Patents did Rambus File Every Year?
Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
| Year of Patents Filing or Grant | Rambus Applications Filed | Rambus Patents Granted |
| 2011 | 193 | 146 |
| 2012 | 324 | 224 |
| 2013 | 214 | 187 |
| 2014 | 240 | 180 |
| 2015 | 320 | 232 |
| 2016 | 268 | 226 |
| 2017 | 221 | 240 |
| 2018 | 190 | 193 |
| 2019 | 275 | 246 |
| 2020 | 264 | 257 |
| 2021 | 148 | 213 |
| 2022 | 29 | 140 |
How many Rambus patents are Alive/Dead?
Worldwide Patents
How Many Patents did Rambus File in Different Countries?
Countries in which Rambus Filed Patents
| Country | Patents |
| United States Of America | 3208 |
| Europe | 430 |
| China | 228 |
| Japan | 211 |
| Germany | 170 |
| Taiwan | 88 |
| Korea (South) | 76 |
| France | 57 |
| Australia | 45 |
| United Kingdom | 39 |
| Austria | 35 |
| India | 19 |
| Israel | 8 |
| Singapore | 6 |
| Hong Kong (S.A.R.) | 6 |
| Canada | 5 |
| Spain | 2 |
| South Africa | 1 |
| Mexico | 1 |
| Italy | 1 |
Where are Research Centers of Rambus Patents Located?
10 Best Rambus Patents
US6502161B1 is the most popular patent in the Rambus portfolio. It has received 604 citations so far from companies like Intel, IBM, and Samsung Electronics.
Below is the list of 10 most cited patents of Rambus:
| Publication Number | Citation Count |
| US6502161B1 | 604 |
| US6753561B1 | 487 |
| US6643787B1 | 405 |
| US6376904B1 | 354 |
| US6396329B1 | 325 |
| US20060153283A1 | 315 |
| US6621155B1 | 311 |
| US6889304B2 | 303 |
| US20060171200A1 | 290 |
| US6839393B1 | 285 |
Which Companies are using Rambus Patents to Advance their Research?
If patents or patents from a particular technology area of a company receive a lot of citations, it implies that the technology is being followed and incrementally innovated by the citing companies. It also indicates that citing companies are working on similar and closely related technologies.
The top citing companies in the Rambus patent portfolio are Micron Technology, Samsung Electronics and Intel.
List of the top forward citing Companies –
| Company | Number of Patents |
| Micron Technology | 357 |
| Samsung Electronics | 211 |
| Intel | 209 |
| Sk Hynix | 128 |
| IBM | 107 |
| Qualcomm | 81 |
| Sandisk Technologies Llc | 61 |
| Hewlett Packard Enterprise | 43 |
| Avago Technologies International Sales | 39 |
| Toshiba Memory | 37 |
Count of 102 and 103 Type Rejections based on Rambus Patents
Top Rambus Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US8737162B2 | 26 |
| US8386800B2 | 26 |
| US8233303B2 | 22 |
| US8344475B2 | 21 |
| US7269708B2 | 21 |
| US7562271B2 | 21 |
| US8427891B2 | 20 |
| US8824222B2 | 19 |
| US8121237B2 | 19 |
| US20060153283A1 | 17 |
| US20100312596A1 | 17 |
| US8891276B2 | 16 |
| US20060171200A1 | 16 |
| US8301905B2 | 15 |
| US7265402B2 | 15 |
What Percentage of Rambus US Patent Applications were Granted?
Rambus (Excluding its subsidiaries) has filed 2325 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 2051 have been granted leading to a grant rate of 92.1%.
Below are the key stats of Rambus patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Rambus?
| Law Firm | Total Applications | Success Rate |
| Rambus Inc | 1262 | 96.53% |
| Marc P Schuyler | 164 | 92.31% |
| Morgan Lewis & Bockius | 155 | 92.67% |
| Renner Otto Boisselle & Sklar | 129 | 84.50% |
| Sheppard Mullin Richter & Hampton | 101 | 100.00% |
| Mcandrews Held & Malloy Ltd | 75 | 96.00% |
| Silicon Edge Law Group | 46 | 0.00% |
| Lowenstein Sandler | 45 | 96.97% |
| The Neudeck Law Firm | 40 | 76.67% |
| Barcelo Harrison & Walker | 27 | 5.26% |
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