# UNIT INSTRUMENTS INC

UNIT INSTRUMENTS INC is a company headquartered in Yorba Linda, CA, United States.

## Company overview

- **Legal name:** UNIT INSTRUMENTS INC
- **Former names in filing history:** AUTOCLAVE ENGINEERS INC (1994-02-14 to 1995-10-10)
- **Classification:** Company
- **Industry (SIC):** 3823 — Industrial Instruments For Measurement, Display, and Control
- **Headquarters:** Yorba Linda, CA, United States
- **Incorporated in:** CA
- **Fiscal year end:** May 31
- **SEC CIK:** 0000350067

## About

UNIT INSTRUMENTS INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000350067, and its reported industry is Industrial Instruments For Measurement, Display, and Control. The retained history contains 12 filings, including SC 13G filed on 1999-02-12. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form SC 13G — filed 1999-02-12 — SCHEDULE 13G
- Form SC 13G — filed 1999-02-12 — 1998 SCHEDULE 13G - UNIT INSTRS INC
- Form 8-K — filed 1999-01-28 — period 1999-01-22 — DATE OF REPORT: JANUARY 22, 1999
- Form 10-Q — filed 1999-01-15 — period 1998-11-28 — FORM 10-Q
- Form SC 13D — filed 1998-12-28
- Form SC 13D — filed 1998-12-08 — SC 13D
- Form 8-K — filed 1998-11-12 — period 1998-11-10 — FORM 8-K FOR EVENT DATED 11/10/1998
- Form 10-Q — filed 1998-10-07 — period 1998-08-29 — FORM 10-Q (DATED 8-29-98)
- Form 8-K — filed 1998-07-07 — period 1998-07-02 — FORM 8-K RE EVENT DATED JULY 2, 1998
- Form 10-Q — filed 1998-04-13 — period 1998-02-28 — FORM 10-Q FOR PERIOD ENDED 2/28/98
- Form SC 13G — filed 1998-02-13 — SCHEDULE 13G
- Form SC 13G — filed 1998-02-13 — SCHEDULE 13G

---

Updated: 2026-10-23T22:43:49Z

Canonical page: https://altss.com/profile/unit-instruments-inc

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology