Your Genetics Expert
About this list
This list contains all depositions given by Dr. van Zyl in his capacity as an expert witness. To date, no trial testimony has been provided. The list is updated as new depositions occur. Where a single matter has involved more than one deposition session, each session is shown as a separate entry (for example, 9, 9a, 9b, 9c).
In compliance with FRCP 26(a)(2)(B), a current four-year prior-testimony list is provided to retaining counsel as part of the formal expert-witness disclosure package. Counsel for opposing parties seeking access in litigation should request through the retaining attorney.
Deposition history
This list contains all depositions given by Dr. van Zyl in his capacity as an expert witness. To date, no trial testimony has been provided. The list is updated as new depositions occur. Where a single matter has involved more than one deposition session, each session is shown as a separate entry (for example, 9, 9a, 9b, 9c).
In compliance with FRCP 26(a)(2)(B), a current four-year prior-testimony list is provided to retaining counsel as part of the formal expert-witness disclosure package. Counsel for opposing parties seeking access in litigation should request through the retaining attorney.
| # | Date | Matter | Court | Case No. |
| 1 | 4/24/2013 | Naomi Guzman v. Exxon Mobil Corporation | 24th Judicial District Court for the Parish of Jefferson, Louisiana | 693-606 |
| 2 | 3/2/2017 | Jessica Blackford-Cleeton and Brandon Cleeton v. AK Steel Corp. et al. | 2nd Judicial Circuit, Circuit Court of Richland County, Illinois | 15-L-17 |
| 3a | 4/2/2019 | Robert Howell and Karen Howell v. Palmdale Oil Company, Inc. | 15th Judicial District, Circuit Court for Palm Beach County, Florida | 50-2016-CA-013844-MB |
| 3b | 10/22/2019 | Robert Howell and Karen Howell v. Palmdale Oil Company, Inc. | 15th Judicial District, Circuit Court for Palm Beach County, Florida | 50-2016-CA-013844-MB |
| 4 | 11/5/2019 | Larry Cole, Sr. v. Honeywell International, Inc. | Circuit Court of Morgan County, Missouri | 16LA-CC00079-01 |
| 5 | 10/27/2020 | Cynthia Cowger v. Qualitex Co. | Cook County Circuit Court, Illinois | 18L012099 |
| 6 | 5/20/2022 | Steven J. Watts and Cindy Watts v. Ashby Lumber Co. et al. | Superior Court of California, County of Alameda | RG19035791 |
| 7 | 6/29/2022 | Loc Ta and Christina Ta v. Kaiser Gypsum Company, Inc. et al. | Superior Court of California, County of Alameda | RG21109884 |
| 8 | 12/16/2022 | Anthony Basgal v. Amcord, Inc. et al. | Superior Court of California, County of Alameda | RG20077265 |
| 8a | 8/8/2023 | Anthony Basgal v. Amcord, Inc. et al. | Superior Court of California, County of Alameda | RG20077265 |
| 9 | 3/20/2023 | Anthony Valadez v. Johnson & Johnson, et al. | Superior Court of California, County of Alameda | 22CV012759 |
| 9a | 3/21/2023 | Anthony Valadez v. Johnson & Johnson, et al. | Superior Court of California, County of Alameda | 22CV012759 |
| 9b | 3/30/2023 | Anthony Valadez v. Johnson & Johnson, et al. | Superior Court of California, County of Alameda | 22CV012759 |
| 9c | 4/5/2023 | Anthony Valadez v. Johnson & Johnson, et al. | Superior Court of California, County of Alameda | 22CV012759 |
| 10 | 5/7/2024 | Roberto Sotomayor and Patricia Bilgin v. Honeywell International | Superior Court of California, County of Alameda | 23STCV01373 |
| 11 | 8/9/2024 | Jerry and Kathryn Kudenov v. Carborundum Grinding Wheel Co. | Superior Court of California, County of Los Angeles | 23STCV28807 |
| 12 | 8/26/2024 | Climmie Craft v. Eagle Inc. et al. | District Court for the Parish of Orleans, Louisiana | 23-11586 |
| 13 | 11/6/2024 | Jessica Ibarra Granillo v. Avon Products, Inc. et al. | Superior Court of California, County of Los Angeles | 22STVC14155 |
| 14 | 1/30/2025 | Linda DuBois v. 3M Company, et al. | State of Indiana, County of Marion | 49D13-2404-CT-01508 |
| 15 | 5/5/2025 | Patsy Stark v. Colgate-Palmolive Co. et al. | Superior Court of California, County of Alameda | 22CV018867 |
| 16 | 9/8/2025 | Jack and Dianne LaSalle v. American International Industries, et al. | Superior Court of Washington, County of King | 23-2-08165-0 SEA |
| 16a | 10/10/2025 | Jack and Dianne LaSalle v. American International Industries, et al. | Superior Court of Washington, County of King | 23-2-08165-0 SEA |
| 17 | 10/24/2025 | Tucker Maute and Olivia Munizza v. Barretts Minerals, Inc. | Circuit Court of the 17th Judicial Circuit, Broward County, Florida | CACE-22-008500 |
| 17a | 11/6/2025 | Tucker Maute and Olivia Munizza v. Barretts Minerals, Inc. | Circuit Court of the 17th Judicial Circuit, Broward County, Florida | CACE-22-008500 |
| 18 | 12/5/2025 | Ryan Patel v. Taylor-Seidenbach, Inc. | Civil District Court for the Parish of Orleans, Louisiana | 2023-8455 |
| 19 | 3/9/2026 | Steven and Ellen Young v. A&M Motor Supply | Superior Court of California, County of Alameda | 25CV126816 |
| 20 | 3/12/2026 | Marianne Calvin and Stanley Kadohota v. Albertsons Companies, et al. | Superior Court of California, County of Los Angeles | 24STCV10310 |
| 20a | 3/19/2026 | Marianne Calvin and Stanley Kadohota v. Albertsons Companies, et al. | Superior Court of California, County of Los Angeles | 24STCV10310 |
